feat: Copy with Redirect context menu

[brian6932]

This has no AI slop :), the only issue's that if you check for matches when showing the context menu, it's a bit inconsistent to have it append. I'll see if I can improve that, I don't think I can hold the rendering of the context menu with a promise. Append ?w=1 to the diff to get a less crazy looking diff, there was a lot of trailing whitespace that my editor decided to trim.

closes #443
closes #414

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Challenges:

• Writing to Chromium's clipboard requires moving some logic out of background, or using the different legacy API.
• After taking a look at Chrome's contextMenus API for this, it's a lot more basic than Firefox's menus, so it's not possible to have match based contexts across browsers (e.g. https://issues.chromium.org/issues/40467152). It'd be cool if targetUrlPatterns worked on link types. As a workaround, I added a global toggle.

[SmartManoj]

Append ?w=1 to the diff to get a less crazy looking diff, there was a lot of trailing whitespace that my editor decided to trim.

For audience, one can use Refined GitHub for hide whitespace button.

[brian6932]

Yea, it's also under the cog without any extensions.