Update atom-beta zap stanza (#3841)

Casks/atom-beta.rb

@@ -22,11 +22,15 @@ cask 'atom-beta' do
 
   zap delete: [
                 '~/.atom',
+                '~/Library/Application Support/com.apple.sharedfilelist/com.apple.LSSharedFileList.ApplicationRecentDocuments/com.github.atom.sfl',
                 '~/Library/Application Support/ShipIt_stderr.log',
                 '~/Library/Application Support/Atom',
                 '~/Library/Application Support/ShipIt_stdout.log',
                 '~/Library/Application Support/com.github.atom.ShipIt',
                 '~/Library/Caches/com.github.atom',
+                '~/Library/Caches/com.github.atom.ShipIt',
+                '~/Library/Preferences/com.github.atom.helper.plist',
                 '~/Library/Preferences/com.github.atom.plist',
+                '~/Library/Saved Application State/com.github.atom.savedState',
               ]
 end