NOT FULLY WORKING YET. Still working to upgrade fully to Tailwind CSS v4.

src/lib/element_data_store.svelte

@@ -72,7 +72,7 @@ if (browser && localStorage.getItem(`ae_ds__${ds_code}`)) {
     ae_ds_tmp = ds_code_obj;
 }
 
-//  Writable<key_val> = localStorageStore(`ae_ds__${ds_code}`, ds_code_obj);
+//  Writable<key_val> = persisted(`ae_ds__${ds_code}`, ds_code_obj);
 // console.log(`ae_e_data_store cached: ${ds_code} = `, ae_ds_tmp);
 console.log(`ae_e_data_store cached: ${ds_code} account_id=${$ae_loc.account_id}`);