Refactor `SliverAppBar.medium` & `SliverAppBar.large` to fix several issues

Explain how to do the two-step migration to the context menus feature.

Localize the 'No Replacements Found' spell check string

`SemanticsFlag`/`SemanticsAction` cleanup (part 4)

Bug report 2 issue template

Add `StrokeCap` to `CircularProgressIndicator`

Exposed EdgeDraggingAutoScroller velocityScalar to ReorderableList

DraggableScrollableSheet & NestedScrollView  should respect NeverScrollableScrollPhysics

Moves to a two-step deprecation process for context menus, avoiding immediate breaking changes.

Fixes BottomAppBar with translucent colors.

Fix ShaderMask Example issue

Sliver Constrained Cross Axis

ExpansionTile audit

Reduce macOS overscroll friction

[Text Input] Only unfocus when receive connectionClosed on platform except web

document StaticIconProvider

Prepare for adding values to AppLifecycleState

Right clicking an InkWell with no secondary tap handlers will no longer cause a ripple.

Reland Refactor reorderable list semantics

Fixes IgnorePointer and AbsorbPointer to only block user interactions…

Fix EditableText misplaces caret when selection is invalid

Revert "Refactor reorderable list semantics"

Initialize `ThemeData.visualDensity` using `ThemeData.platform` instead of `defaultTargetPlatform` (#124357)

Initialize `ThemeData.visualDensity` using `ThemeData.platform` instead of `defaultTargetPlatform`

Positioning of cascading menus.

Fix double the

Refactor reorderable list semantics

[DropdownMenu] add helperText & errorText to DropdownMenu Widget

Make sure the removal of deprecated APIs TextSelectionControls.buildToolbar and TextSelectionHandleControls happen in two separate steps.  Will make a tricky migration situation a little easier for affected users.

Deprecate these old APIs

Fix a memory leak in `AutomaticKeepAlive`

[Docs] Fix Typos

Remove mouse tap text drag selection throttling to improve responsiveness

TapAndDragGestureRecognizer should declare victory immediately when drag is detected

Add CallbackShortcuts example

Fixes https://github.com/flutter/flutter/issues/119534 by adding extra
logic to allow the proper `TextSpan` trees to be build with spell check
results that does not rely on the composing region.

Also, refreshes the algorithm used to correct spell check results to
improve cases where spell check results are out of date, but the
composing region line does not help smooth over this fact by giving the
framework extra time to update while a word is being composed (because a
composing region line would cover up any flashing red underlines).

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we expect every widget to implement].
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- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [ ] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [ ] All existing and new tests are passing.

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Revert "Fix scrolling in the  `Drawer` and `NavigationDrawer` triggers AppBar's scrolledUnderElevation" (#124226)

Revert "Fix scrolling in the  `Drawer` and `NavigationDrawer` triggers AppBar's scrolledUnderElevation"

[platform_view]fix iOS platform view's focus node leakage