85138 Docs improvements for minLines/maxLines (a: text input, framework, cla: yes, d: api docs, documentation)

85144 Deprecate the accentIconTheme ThemeData constructor parameter (framework, f: material design, cla: yes, waiting for tree to go green)

85148 Update GestureDetector docs to use DartPad sample (framework, cla: yes, d: api docs, d: examples, f: gestures, documentation)

85150 Fix SnackBar assertions when configured with theme (severe: crash, framework, f: material design, cla: yes, a: quality, waiting for tree to go green, a: error message)

85151 Remove nameless todo (a: tests, team, tool, framework, f: material design, cla: yes)