fixed api url

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/routes/user/ConnectedServices.svelte

@@ -8,7 +8,7 @@
     let connections = $state([]);
 
     async function loadConnections(){
-        const url  = api('/user/oidc/connected');
+        const url  = api('user/oidc/connected');
         const resp = await fetch(url,{credentials:'include'});
         if (resp.ok){
             const arr = await resp.json();