fix modal on mobile

Signed-off-by: szaimen <[email protected]>
Signed-off-by: nextcloud-command <[email protected]>

Author: szaimen

js/firstrunwizard-main.js

@@ -349,7 +349,7 @@ export default {
 		&::v-deep .modal-container {
 			display: flex;
 			flex-direction: column;
-			position: relative;
+			position: absolute;
 		}
 
 		.modal-body {