[Update] Add crown emoji to supporter label.

Add tooltip that shows their supporting period.
Add icon rotate animation when hovered supporter's image.

src-ui/app/splash_component/download_models_container/DownloadModelsContainer.module.scss

@@ -51,6 +51,7 @@
 }
 
 $progress_ease: cubic-bezier(0, 1, 0.75, 1);
+// Duplicated
 .progress_bar {
     height: 8px;
     transition: width 0.3s $progress_ease;