Co-authored-by: Matthew Ford <matt@bitzesty.com>

Fixes #23472

* Apply Rubocop Rails/WhereNot

* Update spec for where.not

* Apply Rubocop Performance/BlockGivenWithExplicitBlock

* Unprefix used block parameter

* Autofix Rails/EagerEvaluationLogMessage

* Update spec for debug block syntax

* Add tests

* Fix account activation being triggered before email confirmation

Fixes #23098

* Add option to make the landing page be /about even when trends are enabled

* Restablish /explore as landing page by default

* Add confirmation screen on moderation actions

* Add flash notice when a report has been processed

* Refactor tests

* Add tests

* Validate internal actor

* Use “internal.actor” by default for the server actor username

* Fix instance actor username on the fly if it includes ':'

* Change actor name from internal.actor to mastodon.internal

* Change domain block CSV parsing to be more robust and handle more lists

* Add some tests

* Improve domain block import validation and reporting

* Do not offer to mark statuses as sensitive if there is no undeleted status with media attachments

* Fix crash when marking statuses as sensitive while some statuses are deleted

Fixes #21910

* Fix multiple strikes being created for a single report when selecting “Mark as sensitive”

* Add tests

* fix(status): remove send usage for private unlink_from_conversations

- make unlink_from_conversations public method
- rename unlink_from_conversations to unlink_from_conversations!
- fix send call on private method in statuses_vacuum and batched_remove_status_service

* fix(feeds_vacuum): replace find_in_batches with in_batches

because active record query results should be a little more efficient than
itterating with map and each. Postgres can grasp such lists of ids much quicker
than ruby can.
Will probably make allmost no difference, but cannot hurt either.

* Make autosuggest for mentions return followed accounts first

This makes it so that (when elasticsearch is disabled) when a user types '@foo' in the compose box, they are first going to get accounts they follow ordered by the ranking algorithm, and then second they will get accounts they do not follow, also ordered by the ranking algorithm.

This makes behavior more consistent with user expectation and also with results when elasticsearch is enabled.

* Fix ranking order to correct direction

* One more fixup per @gargron suggestion

* Tweak to ranking to no longer include following modifier

* Fix site settings media upload handling of DimensionsValidationError

Fixes #22234

* Fix underlying validations not being performed for site uploads

* Strip spaces around URL when adding a relay

Fixes #22650

* Gracefuly handle URL parsing errors in URL validator

* Webhook `account.approved` when preparing new user

* Update Webhook.EVENTS

* Fix ・ detection in hashtag regex to construct hashtag correctly

* Fixed rubocop liniting issues

* More rubocop linting fix

* Add requested_by to relationship maps

* Display whether an account has requested to follow you on their profile

* Save avatar or header correctly if other one fails

* Fix test

* Clear sessions on password change

* Rename User::clear_sessions to revoke_access for a clearer meaning

* Add reset paassword controller test

* Use User.find instead of User.find_for_authentication for reset password test

* Use redirect and render for better test meaning in reset password

Co-authored-by: Effy Elden <effy@effy.space>

* Fix 500 error when trying to migrate to an invalid address

* Add tests

* Fix trying to fetch posts from other users when fetching featured posts

* Rate-limit discovery of new subdomains

* Put a limit on recursively discovering new accounts

Fixes #21965

* Fix trying to fetch posts from other users when fetching featured posts

* Rate-limit discovery of new subdomains

* Put a limit on recursively discovering new accounts