v0.3.0

• The profit target and maximum loss now display the account currency (previously, they were fixed at "€")
• Live price adjustments: Positions are no longer reset to zero when a symbol is not trading, manual value entry is also now optional and the last quoted value is saved when live mode is turned off.
• Calculation fixes: improved consistency across charts:

1. "Expenses" in the Income vs expenses chart = all outgoings (now matches cards and the donut chart).
2. Recurring income respects its start/end date.
3. Financing with no remaining installments is now included in the cash flow forecast and fixed cost projection.