50034 Add option to clear the terminal by pressing “c” (cla: yes, tool, waiting for tree to go green)

50035 SimpleDialogOption: support custom padding (cla: yes, f: material design, framework, waiting for tree to go green)

50036 [flutter_tools] fix frontend server generated entrypoint (cla: yes, tool, waiting for tree to go green)

50038 [flutter_tools] add missing period to end of filter (cla: yes, tool, waiting for tree to go green)

50040 Use the FlutterVersion defined in context (cla: yes, tool, waiting for tree to go green)

50047 Fix the issue of Android add2app build fails on Android when assets are read-only (a: existing-apps, cla: yes, team, tool, work in progress; do not review)