Added settings and API key stuff

Signed-off-by: Marcel Müller <neikos@neikos.email>

nixie-server/templates/internal_error.tera.html

@@ -0,0 +1,25 @@
+{% extends "base.tera.html" %}
+{% import "inputs.tera.html" as inputs %}
+
+{% block title %}
+Home
+{% endblock title %}
+
+{% block content %}
+<div class="place-self-center mx-auto p-4 space-y-4 bg-red-200 md:border border-red-300 shadow-xl md:rounded">
+    <h1 class="font-bold text-2xl">There was an internal error</h1>
+    <p>
+        {{ error }}
+    </p>
+
+    <hr class="bg-red-800 border-0 h-px">
+
+    <p>
+        This error usually indicates that the problem is not on your side.
+        <br>
+        Additional information was logged for the operator.
+        <br>
+        Feel free to try again later.
+    </p>
+</div>
+{% endblock content %}