Code Quality: Removed WinUIEx dependency

[0x5bfa]

Resolved / Related Issues

Panned internally

• Closes Feature: remove WinuiEx dependency (when possible) #12358

Steps used to test these changes

1. Open Files app
2. Resize to be minimum (see if min size info is set)
3. Terminate the app
4. Lunch the app again (see if the last window placement is kept)
5. Open properties window of a file (see if you can resize but can't maximize)
6. See caption buttons of both windows have the correct brush now and even after you switch theme
7. Enable 'Automatically hide taskbar' in Windows settings
8. Enter F11 on the app
9. Try to hover over on the bottom of the monitor (see taskbar fades in)

[Jay-o-Way]

@niels9001 something to think about for PowerToys maybe?

[yaira2]

We have been very satisfied with WinUIEx, as it provided a crucial function during our initial migration to WinAppSdk. However, given the improvements in WinAppSdk, we have reached a point where this dependency is no longer necessary.

[yaira2]

@0x5bfa can you resolve the merge conflicts?

[yaira2]

@0x5bfa launching Files via this branch doesn't seem to work.

[0x5bfa]

Ready for testing.

[yaira2]

@0x5bfa I’ve noticed that when I’m in full screen mode, the taskbar doesn’t show up when I move the cursor to the taskbar area. Everything else appears to be working though!

[0x5bfa]

Fixed

[yaira2]

@0x5bfa I found an issue where the navigation items are missing from the properties window.

[0x5bfa]

What do you mean??
It gone? On my machine, it exists

[yaira2]

Did you compile from main?