fix: revert moving optionalDependencies to peerDependencies

Author: chrisbreiding

package.json

@@ -52,9 +52,6 @@
     "webpack": "^4.18.1"
   },
   "peerDependencies": {
-    "@babel/core": "^7.0.1",
-    "@babel/preset-env": "^7.0.0",
-    "babel-loader": "^8.0.2",
     "webpack": "^4.18.1"
   },
   "files": [
@@ -73,5 +70,10 @@
     "cypress-plugin",
     "cypress-preprocessor",
     "webpack"
-  ]
+  ],
+  "optionalDependencies": {
+    "@babel/core": "^7.0.1",
+    "@babel/preset-env": "^7.0.0",
+    "babel-loader": "^8.0.2"
+  }
 }