Add mock soft stories and polygons to Mapbox Map

[nickvisut]

Context

Take existing Mapbox component and add/style mock data. The visualization of this data should align with existing design: Figma

Definition of Done

• Mock seismic data displays correctly
• Mock tsunami data displays correctly
• Mock soft story data displays correctly
• Data displays on load and as map is moved around

Engineering Details

• Decide how the initial data is loaded (imported server-side, HTTP request, API call)
• Decide if all data should be loaded upfront (as opposed to a lower fidelity version or subset of it)
• Implement based on above
• Test on various screen sizes to confirm adaptability
• Write unit tests for the map component using Jest #104