- Introduce a bottom navigation bar with "Today," "Weekly," and "Settings" tabs for the iOS app.
- Implement a sidebar navigation for the desktop app with Home, Analytics, Reports, and Settings.
- Add Weekly stats with a bar chart and summary for the iOS app.
- Add Settings view with basic settings options for iOS app.
- Add a Progress Ring for displaying "Today" stats in iOS app.
- Add app usage data list to "Today" tab in iOS app.
- Implement dark theme toggle for desktop app.
- Implement collapsible sidebar in desktop app.
- Refine UI of navigation items for desktop app.
- Add basic placeholders for the desktop app UI.
