[Web] add github version tag - adjust css

data/web/css/build/008-mailcow.css

@@ -204,6 +204,8 @@ legend {
   color: #959595;
   display: flex;
   flex-direction: column;
+  width: 100% !important;
+  padding: 0 !important;
 }
 .footer .version {
     margin-left: auto;