Feature: Introduced a new navigation experience for Rebound Hub

[michalleptuch]

Changes

• MainWindow
  • Adjusted titlebar size, placement, margins, and paddings.
  • Updated grid-based structure for the entire view.
• HomePage and Rebound11Page
  • Applied correct grid-based structure.
  • Added default ThemeShadow for controls on Rebound11Page.
• New hero background images.
• Updated navigation view style
  • Store-like buttons and animations.
• ShellPage
  • Fixed view structure.
• Styles moved to resource dictionaries:
  • CaptionButtons, Image, NavigationViews.
• Updated theme-aware hero background control (HomePageHeaderImage).
• Integrated a new font for the navigation bar:
  • Source: FluentSystemIcons-Resizable.ttf.
• Added EmptyPage and Ivirius.UI nav bar entry as an example for future changes.
• Added external links to the bottom nav bar

[Lamparter]

@IviriusMain what is this?

[IviriusMain]

From WinUI 3 Gallery

[Lamparter]

Looking good!
Just a few things to change.