Improve Switch-only MTP UI with drag export, i18n, and polish.

Ship Finder-style drag-out for files and folders, system-language packs with an Options override, About/menu bar support, and sorting plus selection UX fixes.

CMakeLists.txt

@@ -78,6 +78,7 @@ find_library(FW_APPKIT       AppKit       REQUIRED)
 find_library(FW_FOUNDATION   Foundation   REQUIRED)
 find_library(FW_WEBKIT       WebKit       REQUIRED)
 find_library(FW_CORETEXT     CoreText     REQUIRED)
+find_library(FW_UTTYPES      UniformTypeIdentifiers REQUIRED)
 
 # ─── Application ─────────────────────────────────────────────────────────────
 file(GLOB_RECURSE APP_SOURCES CONFIGURE_DEPENDS
@@ -87,9 +88,17 @@ file(GLOB_RECURSE APP_SOURCES CONFIGURE_DEPENDS
 
 # webroot resource files — copied into the bundle at Resources/webroot/
 file(GLOB WEBROOT_FILES "src/ui/webroot/*")
+file(GLOB WEBROOT_LANG_FILES "src/ui/webroot/lang/*.json")
 foreach(WF ${WEBROOT_FILES})
+    # Skip the lang directory entry if glob picks it up as a file path oddly
+    if(IS_DIRECTORY "${WF}")
+        continue()
+    endif()
     set_source_files_properties(${WF} PROPERTIES MACOSX_PACKAGE_LOCATION Resources/webroot)
 endforeach()
+foreach(LF ${WEBROOT_LANG_FILES})
+    set_source_files_properties(${LF} PROPERTIES MACOSX_PACKAGE_LOCATION Resources/webroot/lang)
+endforeach()
 
 # App icon — generated from assets/AppIcon.png at build time
 set(APP_ICON_SOURCE "${CMAKE_SOURCE_DIR}/assets/AppIcon.png")
@@ -103,7 +112,7 @@ add_custom_command(
     VERBATIM
 )
 
-add_executable(OmniMTP MACOSX_BUNDLE ${APP_SOURCES} ${WEBROOT_FILES} ${APP_ICON_ICNS})
+add_executable(OmniMTP MACOSX_BUNDLE ${APP_SOURCES} ${WEBROOT_FILES} ${WEBROOT_LANG_FILES} ${APP_ICON_ICNS})
 
 target_include_directories(OmniMTP PRIVATE
     ${CMAKE_SOURCE_DIR}/src
@@ -111,7 +120,7 @@ target_include_directories(OmniMTP PRIVATE
 )
 target_link_libraries(OmniMTP PRIVATE
     usb_static
-    ${FW_APPKIT} ${FW_FOUNDATION} ${FW_METAL} ${FW_WEBKIT} ${FW_CORETEXT}
+    ${FW_APPKIT} ${FW_FOUNDATION} ${FW_METAL} ${FW_WEBKIT} ${FW_CORETEXT} ${FW_UTTYPES}
 )
 
 target_compile_options(OmniMTP PRIVATE
@@ -125,7 +134,7 @@ set_target_properties(OmniMTP PROPERTIES
     MACOSX_BUNDLE_BUNDLE_NAME          "OmniMTP"
     MACOSX_BUNDLE_BUNDLE_VERSION       "${PROJECT_VERSION}"
     MACOSX_BUNDLE_SHORT_VERSION_STRING "${PROJECT_VERSION}"
-    MACOSX_BUNDLE_COPYRIGHT            "Copyright © 2025 OmniMTP"
+    MACOSX_BUNDLE_COPYRIGHT            "Copyright © 2026 NiklasCFW"
     MACOSX_BUNDLE_INFO_PLIST           "${CMAKE_SOURCE_DIR}/cmake/Info.plist.in"
     MACOSX_BUNDLE_ICON_FILE            AppIcon
 )