Use package name of AbortController polyfill in whitelisted dependencies

This ensures that polyfill will be listed in `dist/package.json`'s `dependencies`
at build, and then properly installed in FastBoot application server.

Author: bobisjan

package.json

@@ -66,7 +66,7 @@
     "configPath": "tests/dummy/config",
     "fastbootDependencies": [
       "node-fetch",
-      "abortcontroller-polyfill/dist/cjs-ponyfill"
+      "abortcontroller-polyfill"
     ]
   }
 }

public/fastboot-fetch.js

@@ -11,7 +11,7 @@
     self['default'] = abortableFetch.fetch;
     self['Request'] = abortableFetch.Request;
 
-    self['Headers'] = nodeFetch.Headers;    
+    self['Headers'] = nodeFetch.Headers;
     self['Response'] = nodeFetch.Response;
 
     self['AbortController'] = AbortControllerPolyfill.AbortController;