Revert babel upgrade + update to latest react-jsonschema-form

Author: Christopher Whatley

.babelrc

@@ -1,12 +1,12 @@
 {
   "presets": [
-    "@babel/preset-react",
-    "@babel/preset-env"
+    "babel-preset-react",
+    "babel-preset-env"
   ],
   "plugins": [
-    "@babel/plugin-proposal-object-rest-spread",
-    "@babel/plugin-proposal-class-properties",
-    "@babel/plugin-transform-runtime"
+    "babel-plugin-transform-object-rest-spread",
+    "babel-plugin-transform-class-properties",
+    "babel-plugin-transform-runtime"
   ],
   "env": {
     "development": {