fix react-dropzone version

package.json

@@ -188,7 +188,7 @@
     "react-clipboard.js": "^2.0.0",
     "react-codemirror2": "^5.1.0",
     "react-dom": "^16.4.1",
-    "react-dropzone": "^7.0.1",
+    "react-dropzone": "=7.0.1",
     "react-frame-component": "^4.0.0",
     "react-i18next": "=7.13.0",
     "react-waypoint": "^8.1.0",