[#1377] added Authentik OAuth2 provider

Co-authored-by: Marc Singer <ms@pr0.tech>

ui/src/providers.js

@@ -1,5 +1,6 @@
 import SelfHostedOptions from "@/components/settings/providers/SelfHostedOptions.svelte";
 import MicrosoftOptions  from "@/components/settings/providers/MicrosoftOptions.svelte";
+import AuthentikOptions  from "@/components/settings/providers/AuthentikOptions.svelte";
 
 // Object list with all supported OAuth2 providers in the format:
 // ```
@@ -64,4 +65,9 @@ export default {
         title: "LiveChat",
         icon:  "ri-chat-1-fill",
     },
+    authentikAuth: {
+        title: "Authentik",
+        icon:  "ri-lock-fill",
+        optionsComponent: AuthentikOptions,
+    },
 };