Add keyboard shortcuts or keyboard navigation (Talon users)

Summary: The app lacks keyboard shortcuts and full keyboard navigation/focus management, making it effectively unusable for keyboard-only and voice-control users (e.g., Talon). This blocks accessibility workflows and prevents power-user productivity.

Steps to reproduce:

1. Open the app (web or desktop).
2. Attempt to navigate using Tab/Shift+Tab, arrow keys, or common shortcuts (e.g., Ctrl/Cmd+K).
3. Observe that focus is missing/unreliable and there are no keyboard shortcuts for common actions.

Expected:

• Logical tab order and visible focus styles for all interactive elements.
• A set of keyboard shortcuts (or configurable keybindings) for common actions.
• Proper ARIA roles/labels and screen-reader compatibility.

Actual:

• Many controls are only mouse-clickable; no documented or discoverable shortcuts; focus is difficult or impossible to reach.

Impact:

• Blocks users relying on keyboard or voice-control (accessibility barrier).
• Prevents automated/keyboard-driven workflows used by many developers.

Suggested fixes:

• Add keyboard focusability and logical tab order.
• Implement configurable keyboard shortcuts and document them.
• Ensure ARIA roles, focus indicators, and screen-reader testing.
• Add an accessibility/keyboard-mode for power users.

Labels: accessibility, a11y, keyboard-shortcuts, bug, accessibility-blocker