change dateCreated to a string (from a Date object, which persists as a Date object)

src/db/tables/index.ts

@@ -1,6 +1,6 @@
 export type Account = {
   id?: number; // auto-generated by Dexie
-  dateCreated: Date;
+  dateCreated: string;
   derivationPath: string;
   identity: string;
   publicKeyHex: string;

src/views/AccountViewView.vue

@@ -247,7 +247,7 @@ export default class AccountViewView extends Vue {
           this.derivationPath
         );
         await db.accounts.add({
-          dateCreated: new Date(),
+          dateCreated: new Date().toISOString(),
           derivationPath: this.derivationPath,
           identity: JSON.stringify(newId),
           mnemonic: this.mnemonic,

src/views/ImportAccountView.vue

@@ -79,7 +79,7 @@ export default class ImportAccountView extends Vue {
         const num_accounts = await db.accounts.count();
         if (num_accounts === 0) {
           await db.accounts.add({
-            dateCreated: new Date(),
+            dateCreated: new Date().toISOString(),
             derivationPath: this.derivationPath,
             identity: JSON.stringify(newId),
             mnemonic: mne,