feat: enhance GenericVerifiableCredential interface with explicit optional properties

- Add name, description, and agent as optional properties to GenericVerifiableCredential
- Improve type safety and IntelliSense for common claim properties
- Maintain backward compatibility with existing code
- Reduce need for type assertions when accessing claim properties

src/views/ImportDerivedAccountView.vue

@@ -80,8 +80,6 @@ import {
   nextDerivationPath,
 } from "../libs/crypto";
 import * as databaseUtil from "../db/databaseUtil";
-import { db } from "../db/index";
-import { MASTER_SETTINGS_KEY } from "../db/tables/settings";
 import {
   retrieveAllAccountsMetadata,
   retrieveFullyDecryptedAccount,