Added a visual map of the star system. The Map component renders locations as positioned elements based on their coordinates. A drawMap function handles the geometry calculations to scale and position locations within the viewport. Each location is clickable and shows details on hover.

Created a CustomSelect component for choosing which system to view on the map. Locations are now indexed by system in the player context for efficient lookups.

Reorganized the component structure - moved App-related components into an App folder and extracted reusable getMenus logic. Also extracted a common data table pattern from the trades and other list views.

Cleaned up by removing old test files and the unused Pixi.js-based map implementation. Fixed the volume display to use the proper cubic metre symbol (㎥).