Add Missing Fluent Styles

[harshit7962]

Fixes #8698

Description

Multiple styles are not specifically added to Fluent styles. Currently, Fluent styles are not individually incorporated. They are overlaid on the Aero2 theme, which allows the newly added controls to remain visible, although in older styles. However, this approach will not be sustainable when Fluent styles are loaded directly. This could lead to unforeseen behavior when interacting with the controls.
Following styles are added in this PR:

1. BrowserWindow
2. CollectionViewGroup (Additional Styling Not Needed)
3. ContentControl (Additional Styling Not Needed)
4. Floating DataGrid Column (in controls.xaml)
5. DocumentViewer (Additional Styling Needed in some parts)
6. GridSplitter
7. GroupBox
8. GroupItem (Additional Styling Not Needed)
9. HeaderedContentControl (Additional Styling Not Needed)
10. Hyperlink
11. ItemsControl
12. NavigationWindow
13. ResizeGrip
14. Thumb
15. UserControl
16. GridViewColumnHeader
17. StatusBarItem

Testing

Local Build Pass
Gallery Application Testing

Risk

A few of the above styles are not in accordance with Windows 11 styling (the ones not marked with Additional styling not needed). They need to be upgraded at a later stage.

Microsoft Reviewers: Open in CodeFlow

[harshit7962]

Closing this as of now as any of these controls that could have been added as is in Fluent are added via another PR and other controls might need changes to their template.