[ANUE-10376][FE][台股_盤後統計]Layout
- Added AsideMyStockItem component for displaying stock information.
- Updated AsideMyFund to handle both fund and stock items based on the new MyPortfolioItem type.
- Enhanced Storybook stories for AsideMyFund to include scenarios for stocks.
- Adjusted type definitions and rendering logic to accommodate the new stock functionality.
Closes ANUE-10376