Update first time setup flow; update strings, include strings from figma

app/templates/setup_complete.html

@@ -0,0 +1,11 @@
+{% extends "base.html" %}
+
+{% block content %}
+    <div class="block"><h1 class="title is-large">{{ _("Changes have been applied ") }}.</h1></div>
+
+    <div class="block">
+        <p class="subtitle"> {{ _("Continue to your box portal. The portal is the view others will see when they connect to the box hotspot.") }}</p>
+        <button class="button butter-centered"><a href={{ url_for("index") }}> {{ _("Continue to Portal")}}</a></button>
+    </div>
+
+{% endblock %}