When a poll is edited, we reset the poll and remove all previous
votes. However, prior to this commit, the voter count on the poll
was not reset. This leads to incorrect percentages being shown in
poll results.

Fixes #21696

* Fix poll votes not being properly reset on poll change

* Fix and add tests

* Fix poll update handling when the number of options changes

* Add support for editing for published statuses

* Fix references to stripped-out code

* Various fixes and improvements

* Further fixes and improvements

* Fix updates being potentially sent to unauthorized recipients

* Various fixes and improvements

* Fix wrong words in test

* Fix notifying accounts that were tagged but were not in the audience

* Fix mistake

* disable NewCops

* update TargetRubyVersion

* Fix Lint/MissingSuper for ActiveModelSerializers::Model

* Fix Lint/MissingSuper for feed

* Fix Lint/FloatComparison

* Do not use instance variables

* Fix account deletion workers being queued multiple times for a single account

* Fix poll votes being unnecessarily instantiated on poll deletion

* Fix favourites being unnecessarily instantiated on status deletion

* Remove inaccurate comments

* Delete polls instead of destroying them

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

Before this patch, if remote poll options have leading or trailing spaces,
the information stored locally won't match them, causing federated voting to
fail.

* Add voters count to polls

* Add ActivityPub serialization and parsing of voters count

* Add support for voters count in WebUI

* Move incrementation of voters count out of redis lock

* Reword “voters” to “people”

* Add own_votes field to poll results in REST API

Fixes #10679

* Display user votes in WebUI

* Update styling

* Add vote checkmark to public pages

* Backend changes for custom emoji support in poll options

* Serialize poll emojis in REST API

* Render custom emojis in poll options

* Render custom emoji in poll options on public pages

* Add UI for enabling/disabling poll notifications

* Add poll notifications to the (advanced) quick filter bar

* Update poll notification message

“Your poll has ended” → “A poll you have voted in has ended”

* Clear up associated notifications when a poll is deleted

* Do not allow adding votes to expired polls

* Only validate expires_at on create

* Immediately display poll results to poll author

* Refactor Poll#loaded_options and add Poll#voted? to improve DRYness

* Add optimistic lock to avoid race conditions when handling votes

* Force-reload polls when getting `ActiveRecord::StaleObjectError`

* Add polls

Fix #1629

* Add tests

* Fixes

* Change API for creating polls

* Use name instead of content for votes

* Remove poll validation for remote polls

* Add polls to public pages

* When updating the poll, update options just in case they were changed

* Fix public pages showing both poll and other media