Remove FedSockets

See merge request pleroma/pleroma!3155

Specify the architecture for arm gitlab jobs

See merge request pleroma/pleroma!3139

Current FedSocket implementation has a bunch of problems. It doesn't
have proper error handling (in case of an error the server just doesn't
respond until the connection is closed, while the client doesn't match
any error messages and just assumes there has been an error after 15s)
and the code is full of bad descisions (see: fetch registry which uses
uuids for no reason and waits for a response by recursively querying a
 ets table until the value changes, or double JSON encoding).

Sometime ago I almost completed rewriting fedsockets from scrach to
adress these issues. However, while doing so, I realized that fedsockets
 are just too overkill for what they were trying to accomplish, which is
 reduce the overhead of federation by not signing every message.
This could be done without reimplementing failure states and endpoint
 logic we already have with HTTP by, for example, using TLS cert auth,
or switching to a more performant signature algorithm. I opened
https://git.pleroma.social/pleroma/pleroma/-/issues/2262 for further
discussion on alternatives to fedsockets.

From discussions I had with other Pleroma developers it seems like they
 would approve the descision to remove them as well,
therefore I am submitting this patch.

Chores/note handling move

See merge request pleroma/pleroma!3122

Add local-only statuses

Closes #75 and #1483

See merge request pleroma/pleroma!2289

Debian installation guide: fix libmagic header package name

See merge request pleroma/pleroma!3154

It's libmagic-dev in both Ubuntu and Debian.

Reported in private by NaiJi.

.gitattributes: Treat js/css/source maps as binary files

See merge request pleroma/pleroma!3153

mix.exs: Update tesla to 1.4.0

See merge request pleroma/pleroma!3152

Import stable commits into develop after releasing 2.2.0

Closes #2275, #1516, #2257, #2242, #1668, and #2236

See merge request pleroma/pleroma!3151

This prevents `git grep` from showing the matching line and diffs from
being shown by default.

It has been the de-facto style for a while now, however it is not
enforced, so there were some entries that didn't use it.

Translations update from Weblate

See merge request pleroma/pleroma!3127

Updates the frontend bundle and syncs the changelog.

Fix S3 uploads with Elixir 1.11

See merge request pleroma/pleroma!3148

Use absolute URLs to thumbnail and background in /api/v1/instance

See merge request pleroma/pleroma!3149

pleroma.instance: Fix Exiftool module name

See merge request pleroma/pleroma!3143

fixes 2034 Make notifs view work for reports

Closes #2034

See merge request pleroma/pleroma!2912

* 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)

First draft of tips for optimizing BEAM

See merge request pleroma/pleroma!3123

remove PurgeExpiredActivity from Oban db config

See merge request pleroma/pleroma!3137

Install file-dev in Dockerfile build stage

See merge request pleroma/pleroma!3135

This is required by the majic, added in #2534.