* fix(settings): give the MCP copy button success feedback
The MCP server URL Copy button copied to the clipboard but showed no
feedback. It is a DS::Button (single icon), but clipboard_controller's
showSuccess() unconditionally toggled iconDefault/iconSuccess targets —
which that markup does not have — so it threw right after the copy and
the user saw nothing.
Guard the icon-swap path (still used by invite codes, MFA and profiles)
and add a fallback that briefly flips the button's own label to Copied!
via a new copiedText value. Wire it up on the MCP page.
* fix(settings): capture copy button before async clipboard resolve
event.currentTarget is null by the time the writeText().then() callback
runs (it's only valid during event dispatch), so showSuccess received
null and the label never flipped. Capture the button synchronously in
copy() and pass it through. Verified in-browser: Copy -> Copied! -> Copy.
* refactor(clipboard): unify feedback reset delay, harden label lookup
Extract a shared RESET_DELAY_MS so the icon-swap and label-flash paths last the
same duration when both copy buttons render on one page. Scope the label lookup
to span.truncate (the DS::Button text node) so it ignores any future icon span.
Per review feedback.
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Co-authored-by: Guillem Arias <guillem.arias@col.vueling.com>
* chore: add formatting and linting for javascript code relates to #1295
* use spaces instaed
* add to recommended extensions
* only enforce lint
* auto save
