fix: intermittent unsubscriber err breaking pages

pages would stop loading completely and require a refresh due to a
'unsubscriber lexicon' error

src/lib/stores/repo.ts

@@ -52,7 +52,7 @@ export const awaitSelectedRepoCollection = async (
         !repo_collection.loading
       ) {
         setTimeout(() => {
-          unsubscriber()
+          if (unsubscriber) unsubscriber()
         }, 5)
         r({ ...repo_collection })
       }

src/lib/stores/repos.ts

@@ -25,7 +25,9 @@ export const returnRepoCollection = async (
       unique_commit_or_identifier
     ).subscribe((c) => {
       if (!c.loading) {
-        unsubscriber()
+        setTimeout(() => {
+          if (unsubscriber) unsubscriber()
+        }, 5)
         r(c)
       }
     })

src/lib/stores/users.ts

@@ -49,7 +49,9 @@ export const returnUser = async (hexpubkey: string): Promise<User> => {
   return new Promise((r) => {
     const unsubscriber = ensureUser(hexpubkey).subscribe((u) => {
       if (!u.loading) {
-        unsubscriber()
+        setTimeout(() => {
+          if (unsubscriber) unsubscriber()
+        }, 5)
         r(u)
       }
     })
@@ -123,7 +125,9 @@ export const getUserRelays = async (hexpubkey: string): Promise<UserRelays> => {
         (querying_user_relays) => {
           if (querying_user_relays && !querying_user_relays.loading) {
             res(querying_user_relays)
+            setTimeout(() => {
               if (unsubscriber) unsubscriber()
+            }, 5)
           }
         }
       )