* Improve net worth chart
* feat: Add current net worth display to dashboard chart
* Handle different currencies
* Add account balance sync service and update SyncProvider
* Remove redundant transaction filters in DashboardAnalyticsController
- Create reusable dashboard components:
- StatCard with loading states and trend indicators
- NetWorthCard with period comparison
- SpendingSummaryCard with trend visualization
- CashFlowCard showing income vs expenses
- NetWorthChart with area chart visualization
- AccountBalanceCard with sparkline charts
- TopCategoriesCard with category breakdown
- Add useDashboardData hook for fetching analytics
- Update dashboard page with complete analytics UI
- Include date range selector and responsive grid layout