Add make target to deploy to Firebase

The configuration file has been split into 2: one for development mode
and another one for production mode.

Change-Id: I12917cd79c95642adc30004be5bc1a927bca389b
diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index dc4ddc1..a2e638a 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -1,7 +1,7 @@
 <script>
 import {mapGetters} from 'vuex';
 
-import config from './config.json5';
+import config from './config.js';
 import GsiButton from './GsiButton.vue';
 
 export default {