Add Vantage Server Support for Personal Account Connection

Implement Vantage Server Integration for Personal Trading Accounts.

Users are unable to connect their Vantage personal trading accounts to PF1 because Vantage is not currently available as a server option in the account connection interface. This feature request involves adding Vantage to the list of supported brokers/servers within PF1's connectivity options, enabling users to link their personal Vantage accounts alongside their prop firm accounts for comprehensive portfolio tracking and performance analysis. The integration should support standard PF1 functionality including trade importing, real-time data synchronization, performance metrics, and dashboard reporting to ensure Vantage account holders can fully utilize the platform's trading analytics and management capabilities.

Original post by R-Geary:

https://discord.com/channels/1398423459662663820/1398819313108123759/1407597971025170432