Chrome Extension Upgrade to Manifest V3 -- 2

I need my Chrome extension updated from Manifest V2 to V3. The extension is available on the Chrome Web Store at this link: https://chromewebstore.google.com/detail/bluebenet-click2call/cjbbjaihgahoegmijdfaigddombpmfef

Please check the code before posting replies if you can do it.
If yes, reply back
https://chromewebstore.google.com/detail/bluebenet-click2call/cjbbjaihgahoegmijdfaigddombpmfef

Requirements:
- No new features should be added; the focus is solely on the transition.
- The user interface must remain unchanged.

Ideal Skills and Experience:
- Experience with Chrome extensions and familiarity with both Manifest V2 and V3.
- Understanding of Chrome extension permissions, especially 'storage'.
- Ability to ensure that the existing functionality remains intact during the transition.

Please review the extension and ensure a smooth upgrade.