No more RawKeyboard listeners in RenderEditable, use Shortcuts instead.

Control + A to select all text is now overridable.

This removes the _kDebugFocus private global and replaces it with a global debugFocusChanges

Clarify that minLines/maxLines affect the height of the field and not the number of lines that can be entered.

This reverts commit b9bf5769.

This removes the broken video for GestureDetector, and replaces it with a Dartpad sample, for both samples in GestureDetector.

send back Widget class name information in the widget rebuild/repaint count event

* Adds label attributes

* fix test

* comments

* list equal

This adds avoid_dynamic_calls to the list of lints, and fixes all instances where it was violated.

Importantly, this lint is NOT turned on for flutter/packages/test, because those changes are happening in another PR: #84478

* Add SizedBox.square() constructor

* Fix comment and move test case to the right file

* Add missing import statement

This switches the sample analysis code to use package:flutter_lints instead of the flutter repo analysis options, so that they are compatible with a similar change to DartPad.