Add and apply rules for multi-line arrays

We were already applying these rules in most cases.

Note we aren't enabling the `MultilineArrayLineBreaks` rule because
we've got places with many elements whire it isn't clear whether
having one element per line would make the code more readable.

app/models/budget/phase.rb

@@ -1,7 +1,7 @@
 class Budget
   class Phase < ApplicationRecord
     PHASE_KINDS = %w[informing accepting reviewing selecting valuating publishing_prices balloting
-                reviewing_ballots finished].freeze
+                     reviewing_ballots finished].freeze
     PUBLISHED_PRICES_PHASES = %w[publishing_prices balloting reviewing_ballots finished].freeze
     DESCRIPTION_MAX_LENGTH = 2000
 

app/models/comment.rb

@@ -6,8 +6,8 @@ class Comment < ApplicationRecord
   include Searchable
 
   COMMENTABLE_TYPES = %w[Debate Proposal Budget::Investment Poll Topic
-                        Legislation::Question Legislation::Annotation
-                        Legislation::Proposal].freeze
+                         Legislation::Question Legislation::Annotation
+                         Legislation::Proposal].freeze
 
   acts_as_paranoid column: :hidden_at
   include ActsAsParanoidAliases

app/models/concerns/statisticable.rb

@@ -163,8 +163,7 @@ module Statisticable
        [75, 79],
        [80, 84],
        [85, 89],
-       [90, 300]
-      ]
+       [90, 300]]
     end
 
     def participants_between_ages(from, to)