Add polls (#10111)

* 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

app/controllers/api/v1/polls/votes_controller.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+class Api::V1::Polls::VotesController < Api::BaseController
+  include Authorization
+
+  before_action -> { doorkeeper_authorize! :write, :'write:statuses' }
+  before_action :require_user!
+  before_action :set_poll
+
+  respond_to :json
+
+  def create
+    VoteService.new.call(current_account, @poll, vote_params[:choices])
+    render json: @poll, serializer: REST::PollSerializer
+  end
+
+  private
+
+  def set_poll
+    @poll = Poll.attached.find(params[:poll_id])
+    authorize @poll.status, :show?
+  rescue Mastodon::NotPermittedError
+    raise ActiveRecord::RecordNotFound
+  end
+
+  def vote_params
+    params.permit(choices: [])
+  end
+end