The node rename input and the owner/tags editor's tags field sat in a div, so
pressing Enter did nothing and the check/apply button was the only way in.
Both are now real forms with the right button wrapped as type="submit" and
their manual Enter handling removed so there's no double-submit; Escape
handling stays since a form has no native equivalent for it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>