Add image color peek sample to Media page

- Enables live ARGB color display on image hover for user inspection

Bump MewUI version to 0.9.0

- Prepares for next release with updated versioning

Update README wording and fix encoding in pubxml

- Clarifies framework description in README for accuracy
- Fixes XML encoding character in win-x64-trimmed.pubxml
- Improves launchSettings.json formatting for readability

Add MewUI.Gallery sample project with UI showcase

- Demonstrates MewUI controls, theming

Bump MewUI version to 0.8.3

- Prepares for next release with updated versioning

Bump version to 0.8.2

Bump version to 0.8.1 and add THIRD_PARTY_NOTICES.md

- Ensures third-party notices are included in distributed packages

Update docs for controls and Linux dialog dependencies

- Clarifies implemented controls and new features in README
- Documents Linux dialog tool requirements and exceptions
- Bumps version to 0.8.0 for release tracking

Expand ComboBox items in NormalControls UI sample

- Provides more selection options for ComboBox demonstration

Add ICONINFO struct for native interop support

- Enables correct marshaling of icon and cursor data for P/Invoke