feat: Add keyboard shortcuts for common actions

[Ashvin-KS]

Problem

Users have to click through menus for common actions like creating tasks, switching views, etc.

Proposed Solution

Add keyboard shortcuts:

• Ctrl+N: New task
• Ctrl+K: Quick search
• Ctrl+D: Toggle dark mode
• Esc: Close modals

Benefits

• Faster workflow for power users
• Better accessibility
• Professional UX

Implementation Notes

• Use keyboard event listeners
• Show shortcut hints in UI
• Make shortcuts configurable

[mayannkkk19]

Hey @aryandas2911 , i would like to work upon this issue under GSSoC'26.
Could you please assign this issue to me?

[monushah108]

hey @aryandas2911 , could you assign me to work on this issue

[Ashvin-KS]

Hi @monushah108, thanks for the interest! I've already picked this up — PR #1536 implements the keyboard shortcuts and is open for review. If the maintainers decide to reassign, they'll surface it here.

[github-actions]

Hi @Ashvin-KS, this issue appears inactive for 5+ days.

If you’re still working on it, reply here (with an update) to keep it assigned. Otherwise it may be unassigned after 10 days.

[github-actions]

Hi @Ashvin-KS, this issue has been unassigned due to inactivity (no human updates for 10+ days).

If you’re ready to work again, you can re-assign by commenting with the assignment command/keyword.