adding election icon

Resources/Public/Icons/module-election.svg

+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path fill="#AD131B" d="M0 0h64v64H0z"/><path fill="#FFF" d="M19 14h26a1 1 0 0 1 1 1v34a1 1 0 0 1-1 1H19a1 1 0 0 1-1-1V15a1 1 0 0 1 1-1zM40 14H24l2.667-2h10.666z"/><path opacity=".5" fill="#D04139" d="M40 14H24l2.667 2h10.666z"/><path transform="scale(2)" fill="#AD131B" d="M21.3 12.8l-.7-.7c-.2-.2-.5-.2-.7 0l-5.4 5.4-2.5-2.6c-.2-.2-.5-.2-.7 0l-.6.7c-.2.2-.2.5 0 .7l3.6 3.6c.2.2.5.2.7 0l6.4-6.4c.1-.2.1-.5-.1-.7z"/></svg>
\ No newline at end of file

ext_tables.php

@@ -33,7 +33,7 @@ call_user_func(
             ),
             array(
                 'access' => 'user,group',
-                'icon' => '',
+                'icon' => 'EXT:election/Resources/Public/Icons/module-election.png',
                 'labels' => 'LLL:EXT:election/Resources/Private/Language/locallang.xlf',
             )
         );