Roughly implement routes and data preloading

Only preloading data for basic requests w/o query params, at least for
the moment - if we have to preload for something like
/?q=test&sort=newest, we end up having to duplicate a whole lot of
logic between JS/PHP.

views/index.blade.php

@@ -25,6 +25,7 @@
       app.config = {!! json_encode($config) !!};
       app.preload = {
         data: {!! json_encode($data) !!},
+        response: {!! json_encode($response) !!},
         session: {!! json_encode($session) !!}
       };
       app.boot();