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/components/GiftedDialog.vue

@@ -96,7 +96,6 @@ import {
   serverMessageForUser,
 } from "../libs/endorserServer";
 import * as libsUtil from "../libs/util";
-import { db, retrieveSettingsForActiveAccount } from "../db/index";
 import { Contact } from "../db/tables/contacts";
 import * as databaseUtil from "../db/databaseUtil";
 import { retrieveAccountDids } from "../libs/util";