allow to customize footer on login screen

Resources/public/modules/login_page/login.scss

@@ -17,6 +17,10 @@ body {
     position: relative;
     height: 90%;
     padding-top: 10%;
+    footer.footer {
+      position: absolute;
+      bottom: 0;
+   }
 }
 
 #content:before {
@@ -63,10 +67,10 @@ button {
 
 p.forgot-password-link {
     text-align: center;
-    
+
     a {
         font-weight: 300;
         color: #fff;
         text-decoration: none;
     }
-}
+}