Remove interactive map from people page

[Copilot]

Removed the "Group Locations" section containing the interactive Leaflet map from the bottom of the people page as requested. This section included map visualization of the University of Texas at Austin location with various tile provider fallbacks.

Changes Made

• Removed the entire "Group Locations" section from people/index.qmd (lines 95-182)
• Eliminated Leaflet CSS and JavaScript library imports
• Removed map container HTML div and associated styling
• Cleaned up JavaScript code for map initialization, tile providers, markers, and error handling

Before/After

Before: The people page ended with an interactive map showing the group's location in Austin, TX

After: The people page now ends cleanly with the Alumni section, providing a cleaner and more focused layout

The page continues to display all personnel sections (Principal Investigator, Research Scientists, Postdoctoral Fellows, Graduate Students, Post Baccalaureate Researchers, and Alumni) without any functional changes to those sections.

Testing

• ✅ Site builds successfully with quarto render
• ✅ All existing functionality preserved
• ✅ No map-related content remains in generated HTML
• ✅ Page layout remains clean and professional

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[Copilot]

Pull Request Overview

This PR removes the interactive map functionality from the people page by eliminating the "Group Locations" section. The change simplifies the page layout by removing the Leaflet.js map visualization that previously showed the University of Texas at Austin location.

• Removed the entire "Group Locations" section containing the interactive map
• Eliminated all Leaflet CSS and JavaScript dependencies
• Cleaned up map-related HTML and JavaScript code

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