This reverts merge request !2824

Includes a new mix task: pleroma.database fill_old_hashtags

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- start oban in mix tasks with empty queues, plugins and crontab
- fix for update_users_following_followers_counts
- fix for removed logo.png
- typo in resend confirmation emails mix task docs
- fix for uploads mix task (start Majic.Pool)
- fix for creating user mix task (start :fast_html app)

Currently translated at 100.0% (106 of 106 strings)

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This allows to format Japanese furigana (aka ruby) notation.

Present in XHTML 1.1, HTML 5 and later. Absent in XHTML 1.0, HTML 4 and earlier.

See https://www.w3.org/TR/ruby/

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* These are the first small steps for issue 2034 "Reports should send a notification to admins".
* I added a new type of notification "pleroma:report" to the the database manually (a migration will need to be written later)
* I added the new type to the notification_controller
* I made the view return the notification. It doesn't include the report itself (yet)

- fetching activity data
- attachment prefetching
- using limiter to prevent overload

Closes: https://git.pleroma.social/pleroma/pleroma/-/issues/2270

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They can indeed be non-unique.

URI paths are not actually case-insesitive, which caused migration issues
 on a number of databases.

Closes #2188

Currently translated at 24.5% (26 of 106 strings)

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In practice, it was already removed half a year ago, but the description
 and cheatsheet entries were still there.

The migration intentionally does not use ConfigDB.get_by_params, since
this will break migration code as soon as we add a new field is added
 to ConfigDB.

Closes #2086

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