feat(new tool) Microphone tester

[gornvan]

Hi contributors and maintainers, please allow me to express some love and appreciation towards this wonderful project by adding another little tool to it - a microphone tester. I think this screenshot says most of what needs to be said:

I would also like to mention that it comes with Deutsch and Polish(freshly initialized) translations by cgpt.

Also wanna mention that my Vue experience is near to zero so I might have done some completely senseless stuff there. I consider myself a pretty experienced web developer though. Please be excellent yet merciless. ; )

This PR text was in no part generated by AI, though the code mostly is AI-generated.

[vercel[bot]]

@gornvan is attempting to deploy a commit to the Corentin Thomasset's Team Team on Vercel.

A member of the Team first needs to authorize it.

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud