78276 Remove MockStdIn and MockStream (team, tool, cla: yes, waiting for tree to go green, tech-debt)

78522 Shortcut activator (a: tests, a: text input, team, framework, cla: yes)

78646 Convert snippets tool to null safety (team, cla: yes, waiting for tree to go green)

78761 removed CIRRUS_CHANGE_MESSAGE and CIRRUS_COMMIT_MESSAGE (team, cla: yes, team: infra)

79517 [gen-l10n] Cleans up formatting of the generated file (team, tool, cla: yes, waiting for tree to go green)

79610 Remove “unnecessary” imports in misc libraries (team, framework, f: material design, cla: yes, waiting for tree to go green)