Feature: `TitleBarEx`

[IviriusMain]

📄 Description

A title bar based on XAML to replace the default one for more flexibility.

🗃️ Alternative solutions

No response

⚡ API Changes

No response

👥 Intended Use-Case

Ivirius Text Editor Plus and Rebound 11

✅ Tasks

#### High Priority
- [x] NCHITTEST response
- [x] Lock window actions (maximize, minimize, close, resize, etc.)
- [x] Memorize window position
- [x] Dependency properties with binding
- [x] Accent title bar
- [ ] Proper styling support

#### Nice to have
- [ ] ToolWindow support
- [ ] Help window support
- [x] WinUI 3 components (tooltips, system menu) support

📸 Assets

No response