luzpaz e0296b6a6d
Fix various documentation, user-facing, and source comment typos ()
* Fix various doc, user-facing, and source comment typos

Found via `codespell -q 3 -S ./options/locale,./vendor -L ba,pullrequest,pullrequests,readby`
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notifier.go Repository transfer has to be confirmed, if user can not create repo for new owner ()
null.go Fix various documentation, user-facing, and source comment typos ()