launcher: add Import game button

Add a prominent Import button to ConfigurationListWidget that lets
users select a game folder (containing eboot.bin) or a folder
containing multiple games via QFileDialog. Handles:

- Single game folder selected: adds its parent to game_dirs (Scan
  searches subdirectories, so parent is needed)
- Folder with multiple games: adds the selected folder
- Deduplication via PathKey/NormalizeGameDirectories, writes
  settings, rescans, and selects the imported game if found
- Shows info/warning dialogs when no games are found

UI: QToolButton with SP_DirOpenIcon and text Import beside the
existing toolbar, styled with a blue background for visibility.
Logic in ConfigurationListWidget::import_game().

src/launcher/forms/configuration_list_widget.ui

@@ -119,36 +119,64 @@
            </property>
           </widget>
          </item>
-         <item>
-          <widget class="QToolButton" name="delete_button">
-           <property name="minimumSize">
-           <size>
-             <width>36</width>
-             <height>36</height>
-            </size>
-           </property>
-           <property name="toolTip">
-            <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Delete configuration&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-           </property>
-           <property name="styleSheet">
-            <string notr="true"/>
-           </property>
-           <property name="text">
-            <string/>
-           </property>
-           <property name="iconSize">
+          <item>
+           <widget class="QToolButton" name="delete_button">
+            <property name="minimumSize">
             <size>
-             <width>32</width>
-             <height>32</height>
-            </size>
-           </property>
-           <property name="autoRaise">
-            <bool>true</bool>
-           </property>
-         </widget>
-        </item>
-         <item>
-          <spacer name="horizontalSpacer">
+              <width>36</width>
+              <height>36</height>
+             </size>
+            </property>
+            <property name="toolTip">
+             <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Delete configuration&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+            </property>
+            <property name="styleSheet">
+             <string notr="true"/>
+            </property>
+            <property name="text">
+             <string/>
+            </property>
+            <property name="iconSize">
+             <size>
+              <width>32</width>
+              <height>32</height>
+             </size>
+            </property>
+            <property name="autoRaise">
+             <bool>true</bool>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QToolButton" name="import_button">
+            <property name="minimumSize">
+             <size>
+              <width>96</width>
+              <height>36</height>
+             </size>
+            </property>
+            <property name="toolTip">
+             <string>Import game folder (containing eboot.bin)</string>
+            </property>
+            <property name="text">
+             <string>Import</string>
+            </property>
+            <property name="iconSize">
+             <size>
+              <width>20</width>
+              <height>20</height>
+             </size>
+            </property>
+            <property name="toolButtonStyle">
+             <enum>Qt::ToolButtonTextBesideIcon</enum>
+            </property>
+            <property name="autoRaise">
+             <bool>false</bool>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <spacer name="horizontalSpacer">
            <property name="orientation">
             <enum>Qt::Horizontal</enum>
            </property>

src/launcher/include/configurationListWidget.h

@@ -63,6 +63,7 @@ protected slots:
 	void edit_global_settings();
 	void edit_input_mapping();
 	void run_configuration();
+	void import_game();
 	void list_currentItemChanged(QTreeWidgetItem* current, QTreeWidgetItem* previous);
 	void list_itemDoubleClicked(QTreeWidgetItem* witem, int column);
 	void show_context_menu(const QPoint& pos);

src/launcher/src/configurationListWidget.cpp

@@ -21,6 +21,7 @@
 #include <QDialog>
 #include <QDir>
 #include <QFile>
+#include <QFileDialog>
 #include <QFileInfo>
 #include <QHeaderView>
 #include <QIcon>
@@ -234,6 +235,11 @@ ConfigurationListWidget::ConfigurationListWidget(QWidget* parent)
 	m_ui->input_mapping_button->setToolTip(tr("Edit global input mapping"));
 	m_ui->edit_button->setIcon(QIcon(QStringLiteral(":/icons/edit-configuration.svg")));
 	m_ui->delete_button->setIcon(QIcon(QStringLiteral(":/icons/remove-configuration.svg")));
+	m_ui->import_button->setIcon(style()->standardIcon(QStyle::SP_DirOpenIcon));
+	m_ui->import_button->setStyleSheet(QStringLiteral(
+	    "QToolButton { background: rgba(32,118,210,90); border: 1px solid rgba(80,160,255,120); "
+	    "border-radius: 5px; padding: 3px 8px; color: #eef4ff; }"
+	    "QToolButton:hover { background: rgba(32,118,210,140); border-color: rgba(80,160,255,180); }"));
 
 	m_ui->delete_button->setEnabled(false);
 	m_ui->edit_button->setEnabled(false);
@@ -259,6 +265,8 @@ ConfigurationListWidget::ConfigurationListWidget(QWidget* parent)
 	        &ConfigurationListWidget::edit_configuration);
 	connect(m_ui->delete_button, &QToolButton::clicked, this,
 	        &ConfigurationListWidget::delete_configuartion);
+	connect(m_ui->import_button, &QToolButton::clicked, this,
+	        &ConfigurationListWidget::import_game);
 	connect(m_ui->cfgs_list, &QTreeWidget::currentItemChanged, this,
 	        &ConfigurationListWidget::list_currentItemChanged);
 	connect(m_ui->cfgs_list, &QTreeWidget::itemDoubleClicked, this,
@@ -731,6 +739,80 @@ void ConfigurationListWidget::edit_input_mapping() {
 	}
 }
 
+void ConfigurationListWidget::import_game() {
+	const QString selected = QFileDialog::getExistingDirectory(
+	    this, tr("Select game folder (containing eboot.bin) or folder containing games"),
+	    QDir::homePath(), QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);
+
+	if (selected.isEmpty()) {
+		return;
+	}
+
+	QDir dir(selected);
+	QString dir_to_add;
+	QString expected_game_path;
+
+	if (dir.exists(QStringLiteral("eboot.bin"))) {
+		// Selected a single game folder — add its parent so Scan finds it
+		// (Scan only searches subdirectories of game_dirs, not the dirs themselves)
+		dir_to_add           = QDir::cleanPath(dir.absolutePath() + QStringLiteral("/.."));
+		expected_game_path   = QDir::cleanPath(dir.absolutePath());
+	} else {
+		dir_to_add = QDir::cleanPath(dir.absolutePath());
+	}
+
+	const QString normalized = NormalizeGameDirectory(dir_to_add);
+	if (normalized.isEmpty()) {
+		return;
+	}
+
+	const QString key           = PathKey(normalized);
+	bool          already_exists = false;
+	for (const auto& existing: m_game_dirs) {
+		if (PathKey(existing) == key) {
+			already_exists = true;
+			break;
+		}
+	}
+
+	if (!already_exists) {
+		m_game_dirs.append(normalized);
+		m_game_dirs = NormalizeGameDirectories(m_game_dirs);
+		WriteSettings();
+	}
+
+	const int before_count = m_ui->cfgs_list->topLevelItemCount();
+	ScanGameDirectory();
+
+	if (!expected_game_path.isEmpty()) {
+		const QString expected_key = PathKey(expected_game_path);
+		for (int i = 0; i < m_ui->cfgs_list->topLevelItemCount(); ++i) {
+			auto* item = static_cast<ConfigurationItem*>(m_ui->cfgs_list->topLevelItem(i));
+			if (PathKey(item->GetInfo().game_path) == expected_key) {
+				m_ui->cfgs_list->setCurrentItem(item);
+				SelectItem(item);
+				break;
+			}
+		}
+	}
+
+	if (m_ui->cfgs_list->topLevelItemCount() == 0) {
+		QMessageBox::information(this, tr("Import game"),
+		                         tr("No games found in the selected folder.\n\n"
+		                            "Make sure the folder contains a game with eboot.bin "
+		                            "or subfolders with games."));
+	} else if (!expected_game_path.isEmpty() && m_ui->cfgs_list->topLevelItemCount() == before_count) {
+		// Single game import didn't appear
+		const int after_count = m_ui->cfgs_list->topLevelItemCount();
+		if (after_count == before_count) {
+			QMessageBox::warning(this, tr("Import game"),
+			                     tr("The selected game folder was added, but no game was detected.\n\n"
+			                        "Expected eboot.bin at: %1")
+			                         .arg(expected_game_path));
+		}
+	}
+}
+
 void ConfigurationListWidget::ClearCustomSettings(ConfigurationItem* item) {
 	delete m_custom_infos.take(item->GetInfo().game_path);
 }