Exclude identical strings

This gives slightly smaller final binary.

https://doc.qt.io/qt-6/linguist-lrelease.html#lrelease-options
>If the translated text is the same as the source text, exclude the
>message.

src/app/CMakeLists.txt

@@ -15,14 +15,14 @@ add_custom_target(qbt_update_translations
 # -----------------------------------------------------------------------------
 # Based on https://gist.github.com/giraldeau/546ba5512a74dfe9d8ea0862d66db412
 set_source_files_properties(${QBT_TS_FILES} PROPERTIES OUTPUT_LOCATION "${qBittorrent_BINARY_DIR}/src/lang")
-qt_add_translation(QBT_QM_FILES ${QBT_TS_FILES} OPTIONS -silent)
+qt_add_translation(QBT_QM_FILES ${QBT_TS_FILES} OPTIONS -removeidentical -silent)
 configure_file("${qBittorrent_SOURCE_DIR}/src/lang/lang.qrc" "${qBittorrent_BINARY_DIR}/src/lang/lang.qrc" COPYONLY)
 
 if (WEBUI)
     file(GLOB QBT_WEBUI_TS_FILES "${qBittorrent_SOURCE_DIR}/src/webui/www/translations/*.ts")
     set_source_files_properties(${QBT_WEBUI_TS_FILES}
         PROPERTIES OUTPUT_LOCATION "${qBittorrent_BINARY_DIR}/src/webui/www/translations")
-    qt_add_translation(QBT_WEBUI_QM_FILES ${QBT_WEBUI_TS_FILES} OPTIONS -silent)
+    qt_add_translation(QBT_WEBUI_QM_FILES ${QBT_WEBUI_TS_FILES} OPTIONS -removeidentical -silent)
     configure_file("${qBittorrent_SOURCE_DIR}/src/webui/www/translations/webui_translations.qrc"
         "${qBittorrent_BINARY_DIR}/src/webui/www/translations/webui_translations.qrc" COPYONLY)
 endif()