fix missing drag-form when dragging file in to browser

data/style.scss

@@ -420,7 +420,7 @@ th span.active span {
     justify-content: space-between;
 }
 
-.form {
+.form, .drag-form {
     display: none;
     background: var(--drag_background);
     position: absolute;

src/renderer.rs

@@ -59,7 +59,7 @@ pub fn page(
             {
                 div.toolbar_box_group {
                     @if conf.file_upload {
-                        div.form {
+                        div.drag-form {
                             div.form_title {
                                 h1 { "Drop your file here to upload it" }
                             }