Convert all store files from JavaScript to TypeScript

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/stores/mapCompareStore.ts

@@ -1,5 +1,5 @@
 import { defineStore } from 'pinia';
-import { useAllMapDataStore } from '@/stores/allMapData.js';
+import { useAllMapDataStore } from '@/stores/allMapData';
 import { INSIGHTS_FIELDS_AND_LABELS } from '@/constants/constants';
 import ImgCapsuleGlow1 from '@/assets/capsule1-glow.svg';
 import ImgCapsuleGlow2 from '@/assets/capsule2-glow.svg';