UI: Improve exit prompts with contextual information

[tadeubas]

What is this PR for?

As @kdmukai pointed out on Krux chat, when doing things fast, as in workshops for example, "Are you sure?" prompts doesn't help much. This PR adds a little context to those prompts that exit actions.

Changes made to:

• Code
• Tests
• Docs
• CHANGELOG

Did you build the code and tested on device?

• Yes, build and tested on embed_fire

What is the purpose of this pull request?

• Bug fix
• New feature
• Docs update
• Other

[codecov]

Codecov Report

❌ Patch coverage is 71.42857% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 97.37%. Comparing base (b748413) to head (0e7af92).

Files with missing lines	Patch %	Lines
src/krux/pages/__init__.py	33.33%	2 Missing ⚠️

❌ Your patch check has failed because the patch coverage (71.42%) is below the target coverage (95.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #806      +/-   ##
===========================================
- Coverage    97.38%   97.37%   -0.01%     
===========================================
  Files           83       83              
  Lines        10548    10549       +1     
===========================================
  Hits         10272    10272              
- Misses         276      277       +1     

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