Merge pull request #250 from theJayTea/macOS

fixed copilot stated issues

updated model names

updated edit buttons

a lot of bug fixes and improvements

fixed a lot of bugs part 2

fixed a lot of bugs part 2

fixed a lot of bugs

simplified gradient theme and changed the color, fixed the window activation bug

further refactored project code based on latest Apple guidelines, updated MLX Provider, added streaming to response window

improved performance, fixed ui bugs

fixed latex overflow in chat bubble

improved ui based on HIG, replaced older code with native swiftui alternatives, updated models, improved performance, bug fixes

fixed warnings

new improved prompts, thanks to Balázs, fixed a lot of bugs