Fix rubocop warnings

.rubocop.yml

@@ -24,18 +24,21 @@ AllCops:
 Rails:
   Enabled: true
 
+Layout/ExtraSpacing:
+  AllowForAlignment: true
+
 Style/BracesAroundHashParameters:
   EnforcedStyle: context_dependent
 
-Style/ExtraSpacing:
-  AllowForAlignment: true
-
 Style/FileName:
   Exclude:
     - 'script/deliver-message'
     - 'script/locale/reload-languages'
     - 'script/update-spam-blocks'
 
+Style/FormatStringToken:
+  EnforcedStyle: template
+
 Style/IfInsideElse:
   Enabled: false
 
@@ -55,6 +58,12 @@ Style/HashSyntax:
 Style/StringLiterals:
   EnforcedStyle: double_quotes
 
+Style/SymbolArray:
+  EnforcedStyle: brackets
+
+Rails/ApplicationRecord:
+  Enabled: false
+
 Rails/HttpPositionalArguments:
   Enabled: false