AdminAPI: endpoint to delete all content from a remote instance

See merge request pleroma/pleroma!3483

Fix Activity.delete_all_by_object_ap_id/1 timeout so users can be deleted

Closes #2704

See merge request pleroma/pleroma!3479

mix: Update http_signatures to 0.1.1

See merge request pleroma/pleroma!3530

UserController: fall back to frontend when user isn't found

Closes #2730

See merge request pleroma/pleroma!3515

CI: Conservatively update release images so they keep building.

See merge request pleroma/pleroma!3534

activity_pub_controller: Fix misleading debug warning in post_inbox_fallback

See merge request pleroma/pleroma!3531

Mix: Update crypt to fix musl builds.

See merge request pleroma/pleroma!3533

object_validators: Group common fields in CommonValidations

See merge request !3384

Notes:
- QuestionValidator didn't have a :name field but that seems like a mistake
- `_fields` functions can't inherit others because of some Validators
- bto/bcc fields were absent in activities, also seems like a mistake
  (Well IIRC we don't or barely support bto/bcc anyway)

Fix typo

See merge request pleroma/pleroma!3528

Translations update from Weblate

See merge request pleroma/pleroma!3513

Currently translated at 21.6% (23 of 106 strings)

Translation: Pleroma/Pleroma backend
Translate-URL: https://translate.pleroma.social/projects/pleroma/pleroma/ja/

Currently translated at 100.0% (106 of 106 strings)

Translation: Pleroma/Pleroma backend
Translate-URL: https://translate.pleroma.social/projects/pleroma/pleroma/vi/

Currently translated at 64.1% (68 of 106 strings)

Translation: Pleroma/Pleroma backend
Translate-URL: https://translate.pleroma.social/projects/pleroma/pleroma/id/

Currently translated at 61.3% (65 of 106 strings)

Translation: Pleroma/Pleroma backend
Translate-URL: https://translate.pleroma.social/projects/pleroma/pleroma/id/

Currently translated at 59.4% (63 of 106 strings)

Translation: Pleroma/Pleroma backend
Translate-URL: https://translate.pleroma.social/projects/pleroma/pleroma/id/

Currently translated at 55.6% (59 of 106 strings)

Translation: Pleroma/Pleroma backend
Translate-URL: https://translate.pleroma.social/projects/pleroma/pleroma/id/

Currently translated at 50.9% (54 of 106 strings)

Translation: Pleroma/Pleroma backend
Translate-URL: https://translate.pleroma.social/projects/pleroma/pleroma/id/

Currently translated at 4.7% (5 of 106 strings)

Translation: Pleroma/Pleroma backend
Translate-URL: https://translate.pleroma.social/projects/pleroma/pleroma/id/

Currently translated at 100.0% (104 of 104 strings)

Translation: Pleroma/Pleroma backend
Translate-URL: https://translate.pleroma.social/projects/pleroma/pleroma/pl/

CI: Bump lint stage to elixir-1.12

See merge request pleroma/pleroma!3488

Elixir 1.12 changed formatting rules, this allows to avoid having to rollback to run `mix format`

mix: Update crypt to fix #pragma warning

Closes #2710

See merge request pleroma/pleroma!3527

Allow users to remove their emails if instance does not need email to register

See merge request pleroma/pleroma!3522

fix a typo "Optionnal" -> "Optional"

See merge request pleroma/pleroma!3525

Closes: pleroma/pleroma#2710

Docker fix

See merge request pleroma/pleroma!3526

Remove MastoFE from Pleroma, fixes #2625

Closes #2625

See merge request !3392

Remove unused Logger

See merge request pleroma/pleroma!3521