feat(branding): style welcome page with HealthChat colors

res/welcome.html

@@ -8,6 +8,7 @@
     }
 
     .mx_Parent {
+        font-family: "Century Gothic", "Futura", "Trebuchet MS", sans-serif;
         display: -webkit-box;
         display: -webkit-flex;
         display: -ms-flexbox;
@@ -90,7 +91,7 @@
         background-repeat: no-repeat;
         background-position: 10px center;
         text-decoration: none;
-        color: #2e2f32 !important;
+        color: #473e3e !important;
     }
 
     .mx_ButtonLabel {
@@ -110,12 +111,12 @@
     }
 
     .mx_ButtonSignIn {
-        background-color: #368bd6;
+        background-color: #1f4d85;
         color: white !important;
     }
 
     .mx_ButtonCreateAccount {
-        background-color: #0dbd8b;
+        background-color: #376A91;
         color: white !important;
     }
 
@@ -165,7 +166,7 @@ we don't have an account and should hide them. No account == no guest account ei
 </style>
 
 <div class="mx_Parent">
-    <a href="https://element.io" target="_blank" rel="noopener">
+    <a href="https://healthchat.ch" target="_blank" rel="noopener">
         <img src="$logoUrl" alt="$brand" class="mx_Logo" />
     </a>
     <h1 class="mx_Header_title">_t("welcome_to_element")</h1>