fix(remove): Remove duplicate body content and merge conflicts

Co-authored-by: aider (ollama/qwen2.5-coder:32b) <aider@aider.chat>

js/main.js

@@ -184,7 +184,7 @@ document.addEventListener('DOMContentLoaded', function() {
   }));
 
   // Add fullscreen control
-  map.addControl(new maplibregl.FullscreenControl());
+  map.addControl(L.control.fullscreen());
 
   // Mode switching
   const modeCreateBtn = document.getElementById('mode-create');