Update riot branding to element

src/components/HomePage.js

@@ -18,19 +18,18 @@ import React from 'react'
 
 var linkable_clients = [
     {
-        name: "Riot",
+        name: "Element",
         logo: {
-            width: "48px",
-            src: "img/riot@2x.png",
-            srcSet: "img/riot.png, img/riot@2x.png 2x",
+            width: "64px",
+            src: "img/element-64px.png",
         },
-        author: "New Vector",
-        homepage: "https://riot.im",
-        room_url(alias)  { return "https://riot.im/app/#/room/" + alias },
-        room_id_url(id)  { return "https://riot.im/app/#/room/" + id },
-        user_url(userId) { return "https://riot.im/app/#/user/" + userId },
-        msg_url(msg)     { return "https://riot.im/app/#/room/" + msg },
-        group_url(group)     { return "https://riot.im/app/#/group/" + group },
+        author: "Element",
+        homepage: "https://element.io",
+        room_url(alias)  { return "https://app.element.io/#/room/" + alias },
+        room_id_url(id)  { return "https://app.element.io/#/room/" + id },
+        user_url(userId) { return "https://app.element.io/#/user/" + userId },
+        msg_url(msg)     { return "https://app.element.io/#/room/" + msg },
+        group_url(group)     { return "https://app.element.io/#/group/" + group },
         maturity: "Stable",
         comments: "Fully-featured Matrix client for Web, iOS & Android",
     },