Use token_tree_link to render the token browser by AJAX

This should fix the heavy loading :)

Just tested, works as expected, thanks!

This MR is now conflicted due to a merge on another issue.

@FatherShawn rebased! :)

Tip: In most cases you just have to click the "Rebase" button in the MR. GitLab will do the job. Back to RTBC!

I just saw that on another issue - I originally though, "I don't want to pull this repo down just to do a rebase." GitLab is such a gift to our community!

Automatically closed - issue fixed for 2 weeks with no activity.