ToS; persistent pref store; package upgrade

src/components/UpgradeAlert.vue

@@ -36,10 +36,10 @@ const showDialog = ref(false)
 const upgradeResult = ref(null)
 
 detectUpgrade().then((version)=>{
-  if (version===0) {
-    console.log('Vault is the latest version')
+  if (version===null) {
+    console.log('detectUpgrade failed')
   }
-  else {
+  else if (s.version<version) {
     upgradeVersion.value = version
     console.log(`Vault upgrade available to version ${version}`)
   }