fix: nsec import + backup failures and storage.sync data loss#1

vveerrgg wants to merge 3 commits into

mainHumanjavaEnterprises/nostrkey.browser.plugin.src:mainfrom

fix/nsec-import-and-backupHumanjavaEnterprises/nostrkey.browser.plugin.src:fix/nsec-import-and-backupCopy head branch name to clipboard