chore(rubocop): giganto rubocop commit.

muahahahah

app/models/message.rb

@@ -1,9 +1,10 @@
+# frozen_string_literal: true
 class Message < ApplicationRecord
   belongs_to :user
   validates_presence_of :creator_id, :receiver_id, :message
 
   def creator_name
-    if creator = User.where(:user_id => self.creator_id).first
+    if creator = User.where(user_id: self.creator_id).first
       creator.full_name
     else
       "<b>Name unavailable</b>".html_safe