Implement Dark Mode

[visheshrwl]

Is your feature request related to a problem? Please describe. Add dark mode support to improve user experience during nighttime rides.

Additional context

• Toggle between light and dark mode based on user preference.
• Ensure design consistency in both themes.
• Handle map color adjustments for dark mode.

[palidii]

Hey, I would like to try to take over the issue. Is there already a basic design to which the dark mode can be added?

[visheshrwl]

Hey @palidii , there's no design rn, but you can check #50 for the updates regarding this.