Vesto: Asset Tracker

What’s New - Added support for creating assets and purchases in multiple currencies. - Portfolio values and performance calculations now show more accurate TRY-converted values. - Added weekly return tracking. - Added annual investment goal creation and progress tracking. - Improved asset-level, period-based, and overall performance insights. - Refreshed portfolio, asset details, transaction history, and price-update screens. - Improved date pickers, selection sheets, and the overall app design. Fixes - Improved stability when exchange-rate data is unavailable. - Improved BIST stock symbol matching and price-update accuracy. - Prevented accidental currency changes for existing assets. - Improved loading states, network reliability, and empty-state screens. - Improved onboarding on tablets and across different screen sizes.