* 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

At 480px height, there is not enough space to fully display the footer.

Fix #6060

* Add image descriptions to searchable post content.

* Allow multi-line image descriptions.

* Request image descriptions in the same query as posts when creating the search index.

(see https://github.com/tootsuite/mastodon/pull/10036#discussion_r256551624)

* Add list title editing

Port changes made by ash for glitch-soc

* Code style fixes

* fix large line breaks

* fix ascii art posts

* Add hashtag filter to profiles

GET /@:username/tagged/:hashtag
GET /api/v1/accounts/:id/statuses?tagged=:hashtag

* Display featured hashtags on public profile

* Use separate model for featured tags

* Update featured hashtag counters on-write

* Limit featured tags to 10

In #9210 the track color was changed to transparent for no apparent reason. This PR restores the previous color selections implemented in #8653 while keeping the updated property name. Per https://github.com/tootsuite/mastodon/pull/9210#issuecomment-441788776 there is no particular reason for the color change in #9210.

Fix #9845

Fix #9833

- Fix height not updating when clicking show more on public hashtag page
- Add header to the public hashtag page
- Change text size and margins on the public hashtag page

* Fix hashtag timeline width being potentially larger than window width

* Add automatic computation of scrollbar width

Instead of forcing 90vh for the scrollable part of the timeline's height as
in #9781 (which may be off), use `display: flex`, exactly like on desktop.

* Adjust admin UI right panel size

* Fix typo

* change height on narrow view to take 100% of screen

* add empty line before @media

Fix #9697

* Add moderation warnings

Replace individual routes for disabling, silencing, and suspending
a user, as well as the report update route, with a unified account
action controller that allows you to select an action (none,
disable, silence, suspend) as well as whether it should generate an
e-mail notification with optional custom text. That notification,
with the optional custom text, is saved as a warning.

Additionally, there are warning presets you can configure to save
time when performing the above.

* Use Account#local_username_and_domain

* Make sure loading indicator has enough vertical space

* Respect reduce_motion setting for loading indicator

* Prepare to load onboarding as a full page

* Update the first-time introduction

* Improve responsive design

* Replace speech bubble with logo

* Increase text size and reword first paragraph

* Remove "most popular" tab from profile directory, add responsive design

* Remove unused translations

* create FilterBar componer and its container, unstyled

* introduce basic styling for FilterBar

* add selection css

* allow FilterBar to display active CSS with js

* connect the FilterBar to the Redux state

* change getNotifications to use filter

* remove temporary comments

* add an option to turn the FilterBar off in settings

* fix showFilterBar data type to boolean

* fix eslint errors

* add English and Polish translations

* allowed filter bar overflow to accomodate for longer languages

* fix mispelled translation key

* add unified CSS look

* replace text in FilterBar with icons

* add tooltips

* replace text @ with an icon

* introduce simple and advanced filtering view

* add ability to toggle the advanced view

* add Polish translations

* change Advanced View description to be more clear

* make each filter flush notifications and load new ones, fixing pagination

* simplify getNotifications once frontend filtering is not needed for FilterBar

* add a semicolon

* Revert "simplify getNotifications once frontend filtering is not needed for FilterBar"

This reverts commit 9f4be78571.

* reset filter to 'all' when turning off FilterBar

Add right-padding to select elements to take the up/down arrows into
account.

Thanks Tixie for finding the issue!

* Fix missing variable in directory page title

* Order hashtags by number of people instead of alphabetically

* Add icon to OpenGraph preview of directory page

* Prevent line breaks in hashtags and ensure lowercase in the table

Fix #5578

* add RelativeTimestamp elements

* style the elements properly with CSS

* Volume sliders for videos #7429

* Code formatting updates

* Code formatting updates

So that opening a profile feels faster. Also, pinned toots are not
shown before other toots have loaded. Also, if no toots are loaded,
added empty message

* Fix form validation flash message color and input borders

* Fix typo

* Nascent tag menu on frontend

* Hook up frontend to search

* Tag intersection backend first pass

* Update yarnlock

* WIP

* Fix for tags not searching correctly

* Make radio buttons function

* Simplify radio buttons with modeOption

* Better naming

* Rearrange options

* Add all/any/none functionality on backend

* Small PR cleanup

* Move to service from scope

* Small cleanup, add proper service tests

* Don't use send with user input :D

* Set appropriate column header

* Handle auto updating timeline

* Fix up toggle function

* Use tag value correctly

* A bit more correct to use 'self' rather than 'all' in status scope

* Fix some style issues

* Fix more code style issues

* Style select dropdown more better

* Only use to_id'ed value to ensure no SQL injection

* Revamp frontend to allow for multiple selects

* Update backend / col header to account for more flexible tagging

* Update brakeman ignore

* Codeclimate suggestions

* Fix presenter tag_url

* Implement initial PR feedback

* Handle additional tag streaming

* CodeClimate tweak

* Add add user to list from thier profile

* Fix listAdderCss

https://webplatform.news/issues/2018-10-26

* RTL: fix preferences page checkbox margins

* Update rtl.scss

* Include preview cards in status entity in REST API

* Display preview card in-stream

* Improve in-stream display of preview cards

* RTL: fix column-back-button__icon margins/content

* Update rtl.scss

* Update rtl.scss