move types to devDependencies

Should resolve issues with corrupted download mentioned in testing-library#98

Author: jcreamer898

package.json

@@ -44,9 +44,9 @@
   "dependencies": {
     "@babel/runtime": "^7.5.5",
     "@testing-library/dom": "^6.0.0",
-    "@types/testing-library__cypress": "^5.0.0"
   },
   "devDependencies": {
+    "@types/testing-library__cypress": "^5.0.0",    
     "cypress": "3.4.1",
     "kcd-scripts": "^1.5.2",
     "npm-run-all": "^4.1.2",