feat: initial support for offline tiles

works by copying mbtiles (which are just sqlite databases) into the local sqlite database

package.json

@@ -7,7 +7,9 @@
 		"@sveltejs/vite-plugin-svelte": "^5.0.3",
 		"@tailwindcss/vite": "^4.0.0",
 		"@tsconfig/svelte": "^5.0.4",
+		"@types/libsodium-wrappers": "^0.7.14",
 		"@types/node": "^22.15.24",
+		"@types/pako": "^2.0.3",
 		"bits-ui": "^2.7.0",
 		"clsx": "^2.1.1",
 		"eslint-config-prettier": "^10.1.5",
@@ -32,16 +34,22 @@
 	"type": "module",
 	"dependencies": {
 		"@capacitor-community/native-audio": "^7.0.0",
+		"@capacitor-community/sqlite": "^7.0.0",
 		"@capacitor-community/text-to-speech": "^6.0.0",
 		"@capacitor/android": "^7.3.0",
 		"@capacitor/cli": "^7.3.0",
 		"@capacitor/core": "^7.3.0",
 		"@diffusionstudio/vits-web": "^1.0.3",
 		"@eslint/js": "^9.29.0",
+		"@types/sql.js": "^1.4.9",
+		"buffer": "^6.0.3",
 		"eslint": "^9.29.0",
 		"eslint-plugin-svelte": "^3.9.3",
 		"globals": "^16.2.0",
+		"libsodium-wrappers": "^0.7.15",
 		"opening_hours": "^3.8.0",
+		"pako": "^2.1.0",
+		"sql.js": "^1.13.0",
 		"svelte-maplibre-gl": "^0.1.8",
 		"typescript-eslint": "^8.34.1"
 	}