up/down arrows + cmd (optionally + shift) works on desktop to jump selection to beginning/end of field

A very minimal right-click menu for Mac desktop.

This reverts commit 024c49da because it breaks Google internal tests.

This PR replaces the ColoredBox that ListTile uses with an Ink widget. That Ink widget is given a ShapeDecoration with the ListTile's color and shape. This fixes issues where the ListTile color would obscure material ripple effects, and cause the specified shape to not be respected.

List which issues are fixed by this PR. You must list at least one issue.

Fixes #73616
Fixes #63877
Fixes #67117

If you had to change anything in the flutter/tests repo, include a link to the migration guide as per the breaking change policy.

I modified a handful of tests related to ListTiles. The tests I changed had implementation-specific ways of checking the ListTile color. I have rewritten those so that instead of checking for a ColoredBox with a specific color, they check that a path is painted with the correct color.

I added the following tests to list_tile_test.dart:

"ListTile shows Material ripple effects on top of tileColor" (Regression test for #73616)
"ListTile shape is painted correctly" (Regression test for #63877)
I added the following test to sliver_prototype_item_extent_test.dart:

"SliverPrototypeExtentList prototypeItem paint transform is zero" (Regression test for #67117)

Make RenderCustomPaint consult its preferred size for intrinsics when it has no child. Currently, it returns 0 for its intrinsics, even if it has a non-zero preferred size.

Added mainAxisExtent to SliverGridDelegateWithFixedCrossAxisCount and SliverGridDelegateWithMaxCrossAxisExtent (#71376)

Fixes https://github.com/flutter/flutter/issues/71972

selectionEnabled was not taken into account in:

key movement handling in RenderEditable
mouse drag handling in TextSelectionGestureDetectorBuilder

This reverts commit ceca634e.

This reverts commit 358f9b0e.

This reverts commit b18f1b81.

This removes the last couple of doc references to the Window class in the framework, so that I can re-land the engine side change that removes the Window class (flutter/engine#22505).

This reverts usages of the binding's platformDispatcher to use window again temporarily, because there isn't a TestPlatformDispatcher yet, and so some tests were failing because they mocked the TestWindow to return certain things (locales) that were returning the real values instead of the test values.

Once I've created a TestPlatformDispatcher to allow fake data to be passed to it, we can go back to using the platformDispatcher in all of these places