Add ability to "link lock" a tab

[irvinm]

• https://github.com/piroor/treestyletab/issues/3641
• https://github.com/piroor/treestyletab/issues/2104

Ask:

• Add the ability to "link lock" a tab to either allow a tab to behave normally in terms of links (default) or lock the tab so that any links clicked on are opened in a new tab in order to keep the original tab unchanged.

Considerations:

• How to handle each feature in terms of interaction and visual display
• Is it straight forward enough to be able to handle each of the link scenarios

[piroor]

There are some basic ideas to implement the feature:

• It need to be done by a content script registered for <all_urls>.
• In HTML way: for (const link of document.querySelectorAll('[href]')) { link.target = '_blank'; }
• In JS way: document.addEventListener('click', event => { const link = (event.target.nodeType == Node.ELEMENT_NODE ? event.target : event.target.parentNode).closest('[href]'); if (link) { event.preventDefault(); event.stopImmediatePropagation(); window.open(event.target.href, '_blank'); } }, { capture: true });