88308 clean up stale or unnecessary TODOS (a: tests, team, tool, framework, cla: yes, waiting for tree to go green, tech-debt)

88365 Add fixes for AppBar deprecations (team, framework, f: material design, cla: yes, waiting for tree to go green, tech-debt)

88784 Fixed leak and removed no-shuffle tag in binding_test.dart (a: tests, team, framework, cla: yes, waiting for tree to go green, tech-debt)

88824 Fixed leak and removed no-shuffle tag in widgets/clip_test.dart (a: tests, team, framework, cla: yes, waiting for tree to go green, tech-debt)