Refactored ContextMenu into it's own control to allow displaying in
CommandBar and in response to right click on list items.
- Adds "critical" styling to context menu items flagged as `IsCritical`.
This will use the theme to style with correct color.
- Added `SeparatorContextItem` and modified `MoreCommands` to allow for
both `CommandContextItem`s and `SeparatorContextItem`s.
- Right clicking a list item with a context menu will open the context
menu at the position of the click and position the filter box at the top
of the context menu.
This PR covers:
- closes#38308
- closes#39211
- closes#38307
- closes#38261
_targets #38573_
At first I just wanted to add support for nested context menus.
But then I also had to add a search box, so the focus wouldn't get weird.
End result:
This gets rid of the need to have the search box and the command bar both track item keybindings - now it's just in the command bar.
Closes#38299Closes#38442
* [x] Re-adds the context menu shortcut text
* [x] Hooks up the keybindings to the search box so that you can just press the keys while you have an item selected, and do a context command
* [x] Hook these keybindings up to the context flyout itself
* [x] Adds a sample for testing
Solves #38271
**WARNING:** This PR will probably blow up all in-flight PRs
at some point in the early days of CmdPal, two of us created seperate
`Exts` and `exts` dirs. Depending on what the casing was on the branch
that you checked one of those out from, it'd get stuck like that on your
PC forever.
Windows didn't care, so we never noticed.
But GitHub does care, and now browsing the source on GitHub is basically
impossible.
Closes#38081
