The one word command release

Some fixes and a change to the command palette to use shorter commands, which look better in a list and are more memorable.

There is also a optimization which you may notice if you have complex widgets.

[6.4.0] - 2025-10-22

Fixed

• Fixed type hint aliasing for App under TYPE_CHECKING #6152
• Fixed circular dependency effecting bazel users #6163
• Fixed for text selection with double width characters #6186

Changed

• Simplified system commands (command palette) to a single word #6183