Allow closing modals via overlay click and Esc key

### Description

Improve modal UX by enabling two additional ways to dismiss them:

- Clicking outside the modal (on the overlay/backdrop) should close the active modal
- Pressing the Esc key should also close the active modal (nice-to-have)

This should apply globally to all modals for consistent behavior across the app.

### Epic/Story

_No response_

### Have you provided an initial effort estimate for this issue?

I have provided an initial effort estimate