Fix Risk/Lot Multiplier Settings Below 1.0x for Live Account Copy Trading

Resolve the issue preventing risk and lot multipliers below 1.0x from being properly saved when copy trading from prop firm master accounts to live account slaves. Currently, when users attempt to set multipliers below the standard 1.0x (such as 0.2x), the system displays a "success" confirmation message but fails to actually update the setting, reverting back to 1x instead of maintaining the desired lower multiplier value. This bug prevents users from implementing proper risk management and position sizing when scaling down trades from larger prop firm accounts to smaller live trading accounts, limiting effective risk control in copy trading configurations.