fix: import path with $FLUTTER_BASE_HREF

Author: limcheekin

example/web/index.html

@@ -40,8 +40,8 @@
       const serviceWorkerVersion = null;
     </script>
     <script type="module">
-			import { Surreal, StringRecordId } from "assets/packages/surrealdb_js/assets/js/index.bundled.mjs";
-			import { surrealdbWasmEngines } from "assets/packages/surrealdb_wasm/assets/wasm/surrealdb/esm.bundled.js";
+			import { Surreal, StringRecordId } from "$FLUTTER_BASE_HREFassets/packages/surrealdb_js/assets/js/index.bundled.mjs";
+			import { surrealdbWasmEngines } from "$FLUTTER_BASE_HREFassets/packages/surrealdb_wasm/assets/wasm/surrealdb/esm.bundled.js";
 
       // expose the type to the global scope
     	globalThis.SurrealJS = Surreal;