Fix various typos (#17621)

Found via `codespell -q 3 -S ./CHANGELOG.md,./AUTHORS.md,./config/locales,./app/javascript/mastodon/locales -L ba,keypair,medias,ro`

app/lib/feed_manager.rb

@@ -491,7 +491,7 @@ class FeedManager
       end
     else
       # A reblog may reach earlier than the original status because of the
-      # delay of the worker deliverying the original status, the late addition
+      # delay of the worker delivering the original status, the late addition
       # by merging timelines, and other reasons.
       # If such a reblog already exists, just do not re-insert it into the feed.
       return false unless redis.zscore(reblog_key, status.id).nil?