feature(dev-server): add support for path-based routing

* feature(dev-server): add fallback route to /index.html to support path based routing

* fix(dev-server): Fix ion-dev css/js when loaded with a path

* remove injector changes

src/dev-server/http-server.ts

@@ -46,6 +46,9 @@ export function createHttpServer(config: ServeConfig): express.Application {
   app.get('/cordova_plugins.js', servePlatformResource);
   app.get('/plugins/*', servePlatformResource);
 
+  // Fallback route - send to index.html to allow deeplinker to handle path.
+  app.use(serveIndex);
+
   if (config.useProxy) {
     setupProxies(app);
   }