55887 Fix/use contains ignoring whitespace (cla: yes, tool)

55891 manual engine roll (4bcfae82c7c1 -> 0c35a3417) (cla: yes, engine)

55902 Fix default opacity assignments for unselected and selected icons in NavigationRail (cla: yes, f: material design, framework, waiting for tree to go green)

55906 Roll engine 0c35a3417da7..01cf8c36ce34 (3 commits) (cla: yes, waiting for tree to go green)

55909 [gen_l10n] Fix unintended breaking change introduced by output-dir option (a: internationalization, cla: yes, team, tool)