feat: add gamepad buttons support android (#2066)

* feat: add support gamepad buttons

* feat: add support gamepad with github repo

* feat: add gitmodules dependency

* feat: add submodule qtgamepad

* chore: update qtgamepad submodule to commit 4e57142e563b931766056b4c7507c16892260222

* fix: update qtgamepad with standard CMake and private headers support

Update qtgamepad to commit f72b3e0 which:
- Replaces qt_add_library with standard add_library to avoid Qt 6.10 macro conflicts
- Copies private headers to build include tree for Android backend
- Creates Qt:: and Qt6:: namespace aliases for proper linking

client/cmake/3rdparty.cmake

@@ -83,6 +83,19 @@ add_compile_definitions(_WINSOCKAPI_)
 set(BUILD_SHARED_LIBS OFF CACHE BOOL "" FORCE)
 set(BUILD_WITH_QT6 ON)
 add_subdirectory(${CLIENT_ROOT_DIR}/3rd/qtkeychain)
+
+if(ANDROID)
+    # Use qtgamepad from amnezia-vpn/qtgamepad repository
+    add_subdirectory(${CLIENT_ROOT_DIR}/3rd/qtgamepad)
+    # Link both the C++ module and QML plugin
+    if(TARGET GamepadLegacy)
+        target_link_libraries(${PROJECT} PRIVATE GamepadLegacy)
+    endif()
+    if(TARGET GamepadLegacyQuickPrivate)
+        target_link_libraries(${PROJECT} PRIVATE GamepadLegacyQuickPrivate)
+    endif()
+endif()
+
 set(LIBS ${LIBS} qt6keychain)
 
 include_directories(