Fixes bugs in map loading on admin/stats screen

src/app/admin/admin-stats-dashboard.component.ts

@@ -189,6 +189,14 @@ export class AdminStatsDashboardComponent implements OnInit, AfterViewChecked, O
   async loadAll(): Promise<void> {
     this.loading = true;
     this.error = null;
+
+    // Destroy existing map so it re-initializes on the new DOM element
+    // created when loading flips back to false.
+    if (this.map) {
+      this.map.remove();
+      this.map = null;
+    }
+    this.mapInitialized = false;
     const { start, end } = this.getDates();
     try {
       const [summary, timeSeries, geoStats] = await Promise.all([