Add a Reset Zoom Button to Interactive Map

[nicksspirit]

Problem

The interactive map currently lacks a "reset zoom" control/button. Users may manually pan/zoom to various locations and levels, but there is no easy way to return to the initial full-world view. This impacts usability, especially for users who get "lost" exploring the map.

Proposed Solution

Add a reset zoom button to the map interface. This button should:

• Be clearly visible (top-right or near the zoom controls)
• When clicked, reset the map view to the initial center ([20, 0]) and zoom level (2)
• Match the design and style of other map controls (dark theme compatibility)

Technical Approach

• Implement as a custom HTML/JS control injected via Folium after the map is generated.
• Button will use an appropriate icon (↺ or similar).
• Will not impact existing functionality or controls.

Deployment/Testing

• On PR merge, GitHub Actions (static.yml) will regenerate and deploy the updated map.
• Manual testing will confirm:
  • Button visibility/styling
  • Click restores center & zoom
  • Works after arbitrary panning/zooming
  • No overlap/conflict with other UI elements

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References:

• scripts/map.py
• Folium/Leaflet documentation

Acceptance Criteria

• Map has a visible, functional reset button
• Styling matches dark-themed map controls
• Map view resets as described
• Feature deployed and visible on live site