Simplify invite timeout handling

src/app/components/SpaceInvite.svelte

@@ -25,34 +25,36 @@
   const authError = deriveRelayAuthError(url)
 
   const back = () => history.back()
-
   const copyInvite = () => clip(invite)
 
   let claim = $state("")
   let loading = $state(true)
-
   let invite = $state("")
 
   $effect(() => {
     const relay = displayRelayUrl(url)
     const params = new URLSearchParams({r: relay, c: claim}).toString()
-
     invite = PLATFORM_URL + "/join?" + params
   })
 
   onMount(async () => {
+    try {
       const [[event]] = await Promise.all([
         request({
           relays: [url],
           autoClose: true,
-        signal: AbortSignal.timeout(3000),
+          signal: AbortSignal.timeout(10000),
           filters: [{kinds: [RELAY_INVITE]}],
         }),
         sleep(2000),
       ])
 
       claim = getTagValue("claim", event?.tags || []) || ""
+    } catch {
+      claim = ""
+    } finally {
       loading = false
+    }
   })
 </script>