Move global L comment to top of file for ESLint no-undef rule

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

assets/modules/event-map.js

@@ -1,3 +1,5 @@
+/* global L */
+
 export function initEventMap() {
     const mapEl = document.getElementById('event-map')
     if (!mapEl) return
@@ -31,7 +33,6 @@ function geocodeAndRender(address, mapEl) {
             const lat = parseFloat(data[0].lat)
             const lon = parseFloat(data[0].lon)
 
-            /* global L */
             const map = L.map(mapEl).setView([lat, lon], 16)
 
             L.tileLayer('https://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}{r}.png', {