Allow Update activities for non-note posts (resolves #794)

What does this PR do?

Allows Update activities for posts that are not Notes. This matches the logic used in Create and other activities.

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added bugbackend label

requested review from @julia, @Marie, and @dakkar

approved this merge request

I guess we will discover new bugs in our update/edit code, after this 😁

resolved all threads

added 75 commits

• c3020426...41536480 - 74 commits from branch TransFem-org:develop
• bcc20d6d - allow Update activities for non-note posts

Compare with previous version

reset approvals from @dakkar by pushing to the branch

enabled an automatic merge when all merge checks for bcc20d6d pass

approved this merge request

approved this merge request

mentioned in commit 4b5a4002

merged

added federation label