perf: throttle member list derivation and use deduped profile stores in SpaceMembers and RoomMembersAdd

src/app/components/ProfileCircle.svelte

@@ -1,9 +1,9 @@
 <script lang="ts">
   import cx from "classnames"
   import {removeUndefined} from "@welshman/lib"
-  import {deriveProfile} from "@welshman/app"
   import UserRounded from "@assets/icons/user-rounded.svg?dataurl"
   import ImageIcon from "@lib/components/ImageIcon.svelte"
+  import {deriveDedupedProfile} from "@app/core/state"
 
   type Props = {
     pubkey?: string
@@ -14,7 +14,7 @@
 
   const {pubkey, url, size = 7, ...props}: Props = $props()
 
-  const profile = deriveProfile(pubkey, removeUndefined([url]))
+  const profile = deriveDedupedProfile(pubkey, removeUndefined([url]))
 </script>
 
 <ImageIcon