The Rescan blockchain and Restart daemon buttons fired immediately on click —
both are disruptive (long offline rescan / connection drop) and easy to hit by
accident. Route them through confirmation modals, matching the existing
delete-blockchain / clear-ztx confirmations: the button now sets a confirm flag
and an overlay dialog performs the action only on explicit confirm. New i18n
strings added with English defaults.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>