Move some stuff to welshman, broadcast profile updates

src/app/components/ProfileEdit.svelte

@@ -9,7 +9,7 @@
     isPublishedProfile,
     uniqTags,
   } from "@welshman/util"
-  import {Router} from "@welshman/router"
+  import {Router, addMaximalFallbacks} from "@welshman/router"
   import {pubkey, profilesByPubkey, publishThunk} from "@welshman/app"
   import Button from "@lib/components/Button.svelte"
   import ProfileEditForm from "@app/components/ProfileEditForm.svelte"
@@ -28,7 +28,11 @@
     const relays = [...getMembershipUrls($userMembership)]
 
     if (shouldBroadcast) {
-      relays.push(...Router.get().FromUser().getUrls())
+      const router = Router.get()
+
+      relays.push(
+        ...router.merge([router.FromUser(), router.Index()]).policy(addMaximalFallbacks).getUrls(),
+      )
     } else {
       template.tags = uniqTags([...template.tags, PROTECTED])
     }

src/app/components/RoomCreate.svelte

@@ -2,7 +2,7 @@
   import {goto} from "$app/navigation"
   import {randomId} from "@welshman/lib"
   import {displayRelayUrl} from "@welshman/util"
-  import {deriveRelay, getThunkError} from "@welshman/app"
+  import {deriveRelay, getThunkError, createRoom, editRoom, joinRoom} from "@welshman/app"
   import {preventDefault} from "@lib/html"
   import Field from "@lib/components/Field.svelte"
   import Spinner from "@lib/components/Spinner.svelte"
@@ -11,7 +11,6 @@
   import ModalHeader from "@lib/components/ModalHeader.svelte"
   import ModalFooter from "@lib/components/ModalFooter.svelte"
   import {hasNip29, loadChannel} from "@app/state"
-  import {createRoom, editRoom, joinRoom} from "@app/commands"
   import {makeSpacePath} from "@app/routes"
   import {pushToast} from "@app/toast"