21904 Eliminate FLUTTER_NOLINT where possible (cla: yes, code health, platform-android)

21918 Break the reference cycle between the surface factory and the external view embedder (cla: yes, platform-android)

21940 Reformat some files that were not auto-formatted (cla: yes, platform-android, waiting for tree to go green)

21975 Fixes Edge trigger route change announcement (cla: yes, platform-android, platform-ios, waiting for tree to go green)

21977 Fix the initialization of AndroidSurfaceFactoryImpl (cla: yes, platform-android)

21979 Reland: Use dispatchKeyEventPreIme, and handle keys sent to InputConnection.sendKeyEvent on Android (cla: yes, platform-android)