linux(i18n): add Turkish translations (#361)

* linux(i18n): add Turkish translations

- Add Qt Linguist translation infrastructure to CMakeLists.txt
- Wrap UI strings with qsTr() in Main.qml
- Wrap menu strings with tr() in trayiconmanager.cpp
- Add QTranslator loader in main.cpp for automatic locale detection
- Create Turkish translation file (librepods_tr.ts)

Translations include:
- Main window: connection status, noise control modes, settings
- Tray menu: all menu items and tooltips
- System notifications

* fix: allocate QTranslator on heap to ensure lifetime

linux/CMakeLists.txt

@@ -4,13 +4,18 @@ project(linux VERSION 0.1 LANGUAGES CXX)
 
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-find_package(Qt6 REQUIRED COMPONENTS Quick Widgets Bluetooth DBus)
+find_package(Qt6 REQUIRED COMPONENTS Quick Widgets Bluetooth DBus LinguistTools)
 find_package(OpenSSL REQUIRED)
 find_package(PkgConfig REQUIRED)
 pkg_check_modules(PULSEAUDIO REQUIRED libpulse)
 
 qt_standard_project_setup()
 
+# Translation files
+set(TS_FILES
+    translations/librepods_tr.ts
+)
+
 qt_add_executable(librepods
     main.cpp
     logger.h
@@ -85,3 +90,13 @@ install(FILES assets/me.kavishdevar.librepods.desktop
     DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/applications")
 install(FILES assets/librepods.png
     DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/512x512/apps")
+
+# Translation support
+qt_add_translations(librepods
+    TS_FILES ${TS_FILES}
+    QM_FILES_OUTPUT_VARIABLE QM_FILES
+)
+
+# Install translation files
+install(FILES ${QM_FILES}
+    DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/librepods/translations")