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/GsiButton.vue b/frontend/src/GsiButton.vue
index 01cd924..7cb9f1d 100644
--- a/frontend/src/GsiButton.vue
+++ b/frontend/src/GsiButton.vue
@@ -1,5 +1,5 @@
 <script>
-import config from './config.json5';
+import config from './config.js';
 
 export default {
   mounted() {