89020 feat: widget finders add widgetWithImage method (a: tests, framework, cla: yes, waiting for tree to go green)

89021 Add smoke tests for all the examples, fix 17 broken examples. (team, tool, framework, f: material design, cla: yes, f: cupertino, d: examples)

89025 Fix Stack references in Overlay docs (framework, cla: yes, waiting for tree to go green)

89062 Fix (Vertical)Divider samples & docs (team, framework, f: material design, cla: yes, d: examples, waiting for tree to go green)

89064 Fix RadioThemeData documentation issues (framework, f: material design, cla: yes, waiting for tree to go green)

89073 Prevent exceptions in _describeRelevantUserCode from hiding other exceptions (framework, cla: yes, waiting for tree to go green)