rubocop: fix various issues

app/logical/deviant_art_api_client.rb

@@ -40,7 +40,7 @@ class DeviantArtApiClient
       mature_content: mature_content,
       ext_submission: ext_submission,
       ext_camera: ext_camera,
-      ext_stats: ext_stats,
+      ext_stats: ext_stats
     }
 
     request("deviation/metadata", **params)

app/logical/sources/strategies/deviant_art.rb

@@ -201,8 +201,6 @@ module Sources
         end.gsub(/\A[[:space:]]+|[[:space:]]+\z/, "")
       end
 
-    public
-
       def self.deviation_id_from_url(url)
         if url =~ ASSET
           $~[:base36_deviation_id].try(:to_i, 36)
@@ -276,7 +274,7 @@ module Sources
 
       def api_client
         api_client = DeviantArtApiClient.new(
-          Danbooru.config.deviantart_client_id, 
+          Danbooru.config.deviantart_client_id,
           Danbooru.config.deviantart_client_secret
         )
         api_client.access_token = Cache.get("da-access-token", 11.weeks) do
@@ -308,7 +306,7 @@ module Sources
         {
           deviation: api_deviation,
           metadata: api_metadata,
-          download: api_download,
+          download: api_download
         }
       end
     end

app/logical/sources/strategies/stash.rb

@@ -40,15 +40,15 @@ module Sources
       end
 
       def self.stash_id_from_url(url)
-       if url =~ STASH
-         $~[:post_id].downcase
-       else
-         nil
-       end
-     end
+        if url =~ STASH
+          $~[:post_id].downcase
+        else
+          nil
+        end
+      end
 
       def stash_id
-        [url, referer_url].map{ |x| self.class.stash_id_from_url(x) }.compact.first
+        [url, referer_url].map { |x| self.class.stash_id_from_url(x) }.compact.first
       end
     end
   end