Add a loaded check to useSessionStorage

Limit `useSessionStorage` so that `onSnapshot(store, handler)` only runs once.

packages/lib-classifier/src/hooks/useSessionStorage.js

@@ -1,5 +1,5 @@
 import { addDisposer, onSnapshot } from 'mobx-state-tree'
-import { useEffect, useState } from 'react'
+import { useState } from 'react'
 
 import { asyncSessionStorage } from '@helpers'
 
@@ -13,8 +13,13 @@ function persist(storageKey, store, storage) {
 }
 
 export default function useSessionStorage(enableStorage, store, storageKey) {
-  if (!!store && enableStorage) {
-    persist(storageKey, store, asyncSessionStorage)
+  const [loaded, setLoaded] = useState(false)
+
+  if (!loaded && !!store) {
+    if (enableStorage) {
+      persist(storageKey, store, asyncSessionStorage)
+    }
+    setLoaded(true)
   }
   return store
 }