* Use ActiveRecord::Result#to_ary instead of deprecated to_hash
They do the same thing, and to_hash has been removed from Rails 6.1
* Explicitly name polymorphic indexes to workaround a bug in Rails 6.1
cf. https://github.com/rails/rails/issues/41693
* Fix incorrect usage of “foreign_key” in migration script
* Use `ActiveModel::Errors#delete` instead of deprecated clear method
* Fix link headers tests on Rails 6.1
Rails 6.1 adds values to the Link header by default, thus it is not a
LinkHeader object anymore. Fix the test to parse the Link header instead
of assuming it is a LinkHeader.
* Increase DNS timeout from 1 second to 5 seconds for MX check
1 seconds is rather short when using a recursive DNS resolver which
hasn't got a cached result already available. Use 5 seconds instead,
which is the timeout value we use for outgoing HTTP queries.
* Add more precise error messages for invalid e-mail addresses
* Display appropriate error when performing unpermitted operation on custom emoji
Fixes#13897
* Remove links to custom emoji actions not performable by moderators
Change `all_day` to be a visual client-side cue only
Publish immediately if `scheduled_at` is in the past
Add `published_at` and `updated_at` to announcements JSON
* Add announcements
Fix#11006
* Add reactions to announcements
* Add admin UI for announcements
* Add unit tests
* Fix issues
- Add `with_dismissed` param to announcements API
- Fix end date not being formatted when time range is given
- Fix announcement delete causing reactions to send streaming updates
- Fix announcements container growing too wide and mascot too small
- Fix `all_day` being settable when no time range is given
- Change text "Update" to "Announcement"
* Fix scheduler unpublishing announcements before they are due
* Fix filter params not being passed to announcements filter
Allow browsing and filtering all relationships instead of just
followers, unify the codebase with the user-facing relationship
manager, add ability to see who the user invited
* Fix unused role routes being generated
* Remove unused JavaScript code
* Refactor filters code to be DRYer
* Fix `.count == 0` comparisons to `.empty?` in views
* Fix filters in views
* Add search and sort functions to hashtag admin UI
* Move scope processing from tags_controller to tag_filter
* Fix based on method naming conventions
* Fixed not to get 500 errors for invalid requests
Fix percentages in usage breakdown having too many digits
Change trending hashtags to only ask for review if a hashtag enters
the top 3 position in the set, since it's the only items shown in
the default web UI
* Add database columns for adding notes to domain blocks/restrctions
* Add admin UI to set private and public comments when blocking a domain
* Add text for private and public comments on domain blocks
* Show domain block comments in admin UI
* Add comments to the domain block undo page
* Make UnblockDomainService more robust regarding upgraded domain blocks
* Allow editing domain blocks
* Rename button from “undo domain block” to “view domain block” in account admin UI
* Change test to unsilence silenced users from upgraded blocks
* Fix account tags not being saved correctly
Regression from f371b32
Fix Tag#discoverable not returning tags where listable is nil instead of true
Add notice when saving hashtags in admin UI
Change public hashtag and directory pages to return 404 for forbidden tags
* Remove unused locale string
