action prep, activity association removal, activity ui tweaks

lib/widgets/generic/elements/form_search_input.dart

@@ -57,8 +57,7 @@ class _FormSearchInputState extends State<FormSearchInput> {
     _currentQuery = query;
 
     // In a real application, there should be some error handling here.
-    // final Iterable<String> options = await _FakeAPI.search(_currentQuery!);
-    if (query.isNotEmpty) {
+    if (query.isNotEmpty && query.length > 3) {
       final List<Suggestion>? suggestions =
           await service.fetchSuggestions(_currentQuery!);