feat: Enhance tax forms page with progress overview and refactor components for better structure

apps/mobile/packages/data_connect/lib/src/connectors/staff/data/repositories/staff_connector_repository_impl.dart

@@ -107,7 +107,21 @@ class StaffConnectorRepositoryImpl implements StaffConnectorRepository {
           .getStaffTaxFormsProfileCompletion(id: staffId)
           .execute();
 
-      return response.data.taxForms.isNotEmpty;
+      final List<dc.GetStaffTaxFormsProfileCompletionTaxForms> taxForms =
+          response.data.taxForms;
+
+      // Return false if no tax forms exist
+      if (taxForms.isEmpty) return false;
+
+      // Return true only if all tax forms have status == "SUBMITTED"
+      return taxForms.every(
+        (dc.GetStaffTaxFormsProfileCompletionTaxForms form) {
+          if (form.status is dc.Unknown) return false;
+          final dc.TaxFormStatus status =
+              (form.status as dc.Known<dc.TaxFormStatus>).value;
+          return status == dc.TaxFormStatus.SUBMITTED;
+        },
+      );
     });
   }