Issue #2671 - Remove the thumbnail icon the front page

[otutukingsley]

This PR addresses this issue #2671. This PR introduces a feature to hide YouTube thumbnails on the homepage and elsewhere using dynamically injected CSS. The solution ensures that thumbnails are hidden without modifying the underlying structure of YouTube’s DOM.

Testing Locally

• Check into this branch locally
• Navigate to chrome://extensions/
• In the top right cornet, toggle developer mode on.
• In the top left, click on the Load unpacked button
• Select the root folder where the manifest.json file leaves
• This should add the extension locally to your browser
• Navigate to https://www.youtube.com, confirm that the thumbnails for the front page videos are hidden.
• Look at the snippet below to confirm the change.

thumbnail-fix-4.mp4

[ImprovedTube]

Welcome and thank you so much!! @otutukingsley

• name in the locales (at least the english one)
• button in our menu skeleton

structure is always increasing in relevance especially for simple features
(we are approaching 200.) Compare: #2251

[otutukingsley]

Welcome and thank you so much!! @otutukingsley

• name in the locales (at least the english one)
• button in our menu skeleton

structure is always increasing in relevance especially for simple features (we are approaching 200.) Compare: #2251

@ImprovedTube I will make the update and open the PR for your review again.

[otutukingsley]

@ImprovedTube I have made the changes, can you please review it again? thank you!