Correct Currency Display for Live Accounts

Fix currency display functionality to show live accounts in their correct native currency rather than defaulting to USD. Currently, live accounts are incorrectly displaying values in dollars ($) instead of the account's actual base currency (such as £ for GBP accounts), which creates confusion for users when monitoring their account performance and P&L calculations. The platform should automatically detect and display the correct currency symbol and formatting based on the connected live account's actual base currency settings, ensuring accurate representation of account values and maintaining consistency with the user's actual trading environment.