Fix/spurious relay membership prompt (#340)

Co-authored-by: Aditya Chaudhary <30+useradityaa@noreply.coracle.social>

src/app/components/RelaySummary.svelte

@@ -7,7 +7,7 @@
   import RelayDescription from "@app/components/RelayDescription.svelte"
   import ProfileCircles from "@app/components/ProfileCircles.svelte"
   import {roomLists, user} from "@app/core"
-  import {deriveUserRooms} from "@app/rooms"
+  import {userSpaceUrls} from "@app/rooms"
 
   type Props = {
     url: string
@@ -15,7 +15,6 @@
   }
 
   const {url, hideFavorites}: Props = $props()
-  const rooms = deriveUserRooms(url)
   const favorited = $roomLists.pubkeysForUrl(url).$
   const favoritedPubkeys = $derived(remove($user.pubkey, $favorited))
 </script>
@@ -30,7 +29,7 @@
             <RelayIcon {url} size={10} class="rounded-full" />
           </div>
         </div>
-        {#if $rooms.includes(url)}
+        {#if $userSpaceUrls.includes(url)}
           <div
             class="tip absolute -right-1 -top-1 h-5 w-5 rounded-full bg-primary text-primary-content"
             data-tip="You are already a member of this space.">

src/app/components/RoomChat.svelte

@@ -465,7 +465,6 @@
       cleanup?.()
       unsubscribeActive()
       cancelAnimationFrame(frame)
-      document.removeEventListener("visibilitychange", onVisibilityChange)
     }
   })
 </script>

src/routes/spaces/[relay]/+layout.svelte

@@ -55,7 +55,15 @@
     const currentPubkey = user.get().pubkey
 
     if (currentPubkey) {
-      await $roomLists.load(currentPubkey, [url])
+      // Force a fresh fetch rather than `load`, which can resolve immediately from an
+      // hour-stale cache and make a space the user has since joined look unjoined.
+      // Unlike `load`, `forceLoad` doesn't swallow fetch errors, so catch them here —
+      // otherwise a failed fetch would leave spacesLoaded false forever.
+      try {
+        await $roomLists.forceLoad(currentPubkey, [url])
+      } catch (error) {
+        console.warn(`Failed to load room list for ${currentPubkey}`, error)
+      }
     }
 
     spacesLoaded = true