Update hardcoded profile background and remove dummy posts

Preparation for video demo recording for Eurocities conference.

client/assets/data.json

@@ -3,7 +3,7 @@
   "name": "Aral Balkan",
   "bio": "Cyborg Rights Activist",
   "profileImage": "/profile-image.jpg",
-  "backgroundImage": false,
+  "backgroundImage": "/laurakalbag_2018-Mar-30.jpg",
   "backgroundColour": "#0062B1",
   "privateKey": "encrypted private key",
   "publicKey": "public key",

client/components/indieHeader.vue

@@ -144,6 +144,7 @@ export default {
   align-items: center;
   color: white;
   background-size: cover;
+  background-position: 50% 50%;
 
   /* Position relatively so contained items align to this container. */
   position: relative;

client/pages/index.vue

@@ -57,14 +57,14 @@ export default {
 
       // Mock posts
       posts: [
-      {
-        id: 1,
-        content: "<h2>Later post</h2><p>So is this!</p>"
-      },
-      {
-        id: 0,
-        content: "<h2>Earliest post</h2><p>This is a great post.</p>"
-      }
+      // {
+      //   id: 1,
+      //   content: "<h2>Later post</h2><p>So is this!</p>"
+      // },
+      // {
+      //   id: 0,
+      //   content: "<h2>Earliest post</h2><p>This is a great post.</p>"
+      // }
     ]
     }
   },