19500 fuchsia: Remove dead flutter_frontend_server code (cla: yes, code health, platform-fuchsia)

affects: text input - 2 pull request(s)

17420 Make DPAD movement consider grapheme clusters (affects: text input, cla: yes)

17509 Implement repeat filtering logic in Android Embedder (affects: text input, cla: yes, platform-android)

platform-windows - 2 pull request(s)

18878 Refactor Win32FlutterWindow in preparation for UWP windowing implementation (cla: yes, platform-windows)

19339 Fix broken mac/fuchsia compiles (affects: tests, cla: yes, platform-android, platform-fuchsia, platform-ios, platform-linux, platform-macos, platform-windows)

bug - 1 pull request(s)