Improve Error message

lib/main.dart

@@ -70,6 +70,7 @@ class _MyHomePageState extends State<MyHomePage> {
 
   Future<String?> getSafPickedSheetsDirectory() async {
     var pickedDirectories = await Saf.getPersistedPermissionDirectories();
+    print("Picked dirs = $pickedDirectories");
     if (pickedDirectories == null || pickedDirectories.isEmpty) {
       return null;
     }
@@ -79,7 +80,7 @@ class _MyHomePageState extends State<MyHomePage> {
   Future<List<Sheet>> acquireSheets() async {
     String? sheetsDirectory = await getSafPickedSheetsDirectory();
     if (sheetsDirectory == null || sheetsDirectory.isEmpty) {
-      Saf.getDynamicDirectoryPermission(grantWritePermission: false);
+      await Saf.getDynamicDirectoryPermission(grantWritePermission: false);
       sheetsDirectory = await getSafPickedSheetsDirectory();
       if (sheetsDirectory == null || sheetsDirectory.isEmpty) {
         throw Exception("No Directory selected");
@@ -88,7 +89,7 @@ class _MyHomePageState extends State<MyHomePage> {
 
     var sheetsDirectoryFiles = await Saf.getFilesPathFor(sheetsDirectory);
     if (sheetsDirectoryFiles == null) {
-      Saf.releasePersistedPermissionFor(sheetsDirectory);
+      await Saf.releasePersistedPermissions();
       throw Exception(
           "Permissions for directory no longer valid or Directory deleted. Please restart app.");
     }
@@ -115,9 +116,16 @@ class _MyHomePageState extends State<MyHomePage> {
                 ),
               );
             } else if (snapshot.hasError) {
-              return Text(snapshot.error.toString());
+              return Center(
+                  child: Text(
+                      style: Theme.of(context)
+                          .textTheme
+                          .displaySmall!
+                          .copyWith(color: Colors.red),
+                      textAlign: TextAlign.center,
+                      snapshot.error.toString()));
             } else {
-              return const CircularProgressIndicator();
+              return const Center(child: CircularProgressIndicator());
             }
           }),
     );