* Add search results pagination to web UI

Fix #10737

* Fix code style issue

* Disable invite links from disabled/suspended users

* Add has_many invites relationship to users

* Destroy unused invites when suspending an account

* Check to make sure usernames with '.' cannot be created

* Add test for instance actor account name conflicts

This makes sure that migration 20190715164535_add_instance_actor
won't fail if there's already an account that is named the same
as the domain (minus the .)

* Put the test into the correct context...

* Add another test to split this into two validations

* Don't delete periods when validating username uniqueness (#11392)

The 20190715164535_add_instance_actor migration fails if there's
already a username similar to the domain name, e.g. if you are
'vulpine.club' and have a user named 'vulpineclub', validation
fails.

Upon further review, usernames with periods are dropped by the
regular expression in the Account class, so we don't need to
worry about it here.

Fixes #11392

Fixes #11389

* Bump active_model_serializers from 0.10.9 to 0.10.10

Bumps [active_model_serializers](https://github.com/rails-api/active_model_serializers) from 0.10.9 to 0.10.10.
- [Release notes](https://github.com/rails-api/active_model_serializers/releases)
- [Changelog](https://github.com/rails-api/active_model_serializers/blob/v0.10.10/CHANGELOG.md)
- [Commits](https://github.com/rails-api/active_model_serializers/compare/v0.10.9...v0.10.10)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* Add root option to render method

Allow access to account settings, 2FA, authorized applications, and
account deletions to unconfirmed and pending users, as well as
users who had their accounts disabled. Suspended users cannot update
their e-mail or password or delete their account.

Display account status on account settings page, for example, when
an account is frozen, limited, unconfirmed or pending review.

After sign up, login users straight away and show a simple page that
tells them the status of their account with links to account settings
and logout, to reduce onboarding friction and allow users to correct
wrongly typed e-mail addresses.

Move the final sign-up step of SSO integrations to be the same
as above to reduce code duplication.

* Play animated custom emoji on hover in status

* Play animated custom emoji on hover in display names

* Play animated custom emoji on hover in bios/bio fields

* Add support for animation on hover on public pages emojis too

* Fix tests

* Code style cleanup

* Fix `alerts` booleans not being typecast correctly in push subscription

Fix #10789

* Fix typo

Fix #6462

Already displayed in public pages, but not WebUI

* Add spec covering numeric-only hashtags

* Fix hashtag regex

Fix #10840

* Added logout to dropdown menu

* Triggering build-and-test with empty commit as it seems it failed due to some internal failure

* Looks fine, ready to review

* Added changes from review

* method can be null without any problems

* Also target can be null

* Add test

* Fix code for sanitizing nested lists stripping all tags

* Add support for an instance actor

* Skip username validation for local Application accounts

* Add migration script to create instance actor

* Make Codeclimate happy

* Switch to id -99 for instance actor

* Remove unused `icon` and `image` attributes from instance actor

* Use if/elsif/else instead of return + ternary operator

* Add instance actor to fresh installs

* Use instance actor as instance representative

Use instance actor for forwarding reports, relay operations, and spam
auto-reporting.

* Seed database in test environment

* Fix single-user mode

* Fix tests

* Fix specs to accomodate for an extra `Account`

* Auto-reject follows on instance actor

Following an instance actor might make sense, but we are not handling that
right now, so auto-reject.

* Fix webfinger lookup and serialization for instance actor

* Rename instance actor

* Make it clear in the HTML view that the instance actor should not be blocked

* Raise cache time for instance actor as there's no dynamic content

* Re-use /about/more with a flash message for instance actor profile

Fix #10934

Fix #11186

* Add environment variable to disable the anti-spam

* Move antispam setting to admin settings

* Fix typo

* antispam → spam_check

Fix #11328

* Extend AUTHORIZED_FETCH mode to user blocks as well

* Move decision to deny access to StatusPolicy

* Fix reverse-proxy caching in public fetch mode

* Fix caching in ActivityPub-specific controllers

Fix #9031
Fix #7913

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* i18n-tasks normalize

* yarn manage:translations

Now that the request is signed, it can return private toots. Do not leak them.

* Add a spam check

* Use Nilsimsa to generate locality-sensitive hashes and compare using Levenshtein distance

* Add more tests

* Add exemption when the message is a reply to something that mentions the sender

* Use Nilsimsa Compare Value instead of Levenshtein distance

* Use MD5 for messages shorter than 10 characters

* Add message to automated report, do not add non-public statuses to
automated report, add trust level to accounts and make unsilencing
raise the trust level to prevent repeated spam checks on that account

* Expire spam check data after 3 months

* Add support for local statuses, reduce expiration to 1 week, always create a report

* Add content warnings to the spam check and exempt empty statuses

* Change Nilsimsa threshold to 95 and make sure removed statuses are removed from the spam check

* Add all matched statuses into automatic report

- Change the maximum count of retry for web push notification (Default -> 5).
   - In case of high load of subscribe server, the retries will be repeated many times.
   - Because the retries occupy the default queue, maximum retry count should be reduced.

* Add HTTP signature requirement for served ActivityPub resources

* Change `SECURE_MODE` to `AUTHORIZED_FETCH`

* Add 'Signature' to 'Vary' header and improve code style

* Improve code style by adding `public_fetch_mode?` method

Fixes #11148

Fix #11270