Move votes partials to components

We're going to change the code quite a bit, and with components we can
easily extract methods when necessary.

app/components/legislation/proposals/votes_component.rb

@@ -0,0 +1,9 @@
+class Legislation::Proposals::VotesComponent < ApplicationComponent
+  attr_reader :proposal, :legislation_proposal_votes
+  delegate :css_classes_for_vote, :current_user, :link_to_verify_account, :user_signed_in?, :voted_for?, :votes_percentage, to: :helpers
+
+  def initialize(proposal, legislation_proposal_votes:)
+    @proposal = proposal
+    @legislation_proposal_votes = legislation_proposal_votes
+  end
+end