Refactoring some unnecessary code

Forgot to mention:

• Updated Github README
• Added a Contributing MD (not updated yet)
• accidently broke the window dragging
• Rust 🦀minor fixes

boring stuff:

• Deleted UpdateSettingsRequest Function and related calls
• Deleted leftover SVG
• Deleted normalize_theme function
  • Unused tests
• Debugging CI workflow
• Tiny other chores

NEXT:

Fix UI – Placeholder rn
(Forgive me for the vibecoded UI 😳😳)
update all the documentation