[mirotalksfu] - add drag and drop on file share, update dep

public/css/Room.css

@@ -1076,6 +1076,20 @@ progress {
     cursor: move;
 }
 
+#dropArea {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    height: 200px;
+    border: 2px dashed #ccc;
+    padding: 20px;
+    text-align: center;
+}
+
+#dropArea p {
+    margin: 0;
+}
+
 /*--------------------------------------------------------------
 # Whiteboard
 --------------------------------------------------------------*/