copy just enough gstreamer plugins and handle deps for Windows build

- Added custom command to copy libZUpdater.dll for deployment
- Updated win-deploy.cmake to copy specific GStreamer plugins
- Introduced install scripts for Apple drivers and WinFsp
- Improved DiagnoseWidget UI with scroll area and process indicators
- Adjusted WelcomeWidget to include DiagnoseWidget on non-Apple platforms

CMakeLists.txt

@@ -387,3 +387,15 @@ if(WIN32)
 endif()
 
 include(CPack)
+
+
+# FIXME: move to win-deploy.cmake
+if(WIN32)
+    # Ensure libZUpdater.dll is copied next to the main executable for deployment
+    add_custom_command(TARGET iDescriptor POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+                $<TARGET_FILE:ZUpdater>
+                $<TARGET_FILE_DIR:iDescriptor>
+        COMMENT "Copying libZUpdater.dll to executable directory"
+    )
+endif()