add jellyfin configuration for sso

jellyfin/config/branding.xml

@@ -1,6 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
 <BrandingOptions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
-  <LoginDisclaimer />
-  <CustomCss />
+  <LoginDisclaimer>&lt;form action="https://jellyfin.rik.veenboer.xyz/sso/OID/start/Authenthik"&gt;
+  &lt;button class="raised block emby-button button-submit"&gt;
+    Sign in with SSO
+  &lt;/button&gt;
+&lt;/form&gt;</LoginDisclaimer>
+  <CustomCss>a.raised.emby-button {
+  padding: 0.9em 1em;
+  color: inherit !important;
+}
+
+.disclaimerContainer {
+  display: block;
+}</CustomCss>
   <SplashscreenEnabled>false</SplashscreenEnabled>
 </BrandingOptions>

jellyfin/config/system.xml

@@ -158,6 +158,11 @@
       <Url>https://repo.jellyfin.org/files/plugin/manifest.json</Url>
       <Enabled>true</Enabled>
     </RepositoryInfo>
+    <RepositoryInfo>
+      <Name>SSO</Name>
+      <Url>https://raw.githubusercontent.com/9p4/jellyfin-plugin-sso/manifest-release/manifest.json</Url>
+      <Enabled>true</Enabled>
+    </RepositoryInfo>
   </PluginRepositories>
   <EnableExternalContentInSuggestions>true</EnableExternalContentInSuggestions>
   <ImageExtractionTimeoutMs>0</ImageExtractionTimeoutMs>