Fix search results screen erratic initial behavior (clearing text field and not showing status)

lib/screens/search_screen.dart

@@ -37,7 +37,6 @@ class _SearchScreenState extends State<SearchScreen> {
   static final _logger = Logger('$SearchScreen');
   var searchTextController = TextEditingController();
   var searchType = SearchTypes.statusesText;
-  var searching = false;
   PagingData nextPage = PagingData(limit: limit);
   var searchResult = SearchResults.empty();
   Profile? profileOfSearchRequest;
@@ -68,9 +67,6 @@ class _SearchScreenState extends State<SearchScreen> {
       nextPage = PagingData(limit: limit);
       searchResult = SearchResults.empty();
     }
-    setState(() {
-      searching = true;
-    });
 
     print('Search $searchType on ${searchTextController.text}');
     final result = await SearchClient(profile)
@@ -84,9 +80,7 @@ class _SearchScreenState extends State<SearchScreen> {
       onError: (error) =>
           buildSnackbar(context, 'Error getting search result: $error'),
     );
-    setState(() {
-      searching = false;
-    });
+
     print('Ending update');
   }
 
@@ -95,7 +89,6 @@ class _SearchScreenState extends State<SearchScreen> {
     setState(() {
       searchResult = SearchResults.empty();
       searchTextController.text = '';
-      searching = false;
     });
   }
 
@@ -111,21 +104,25 @@ class _SearchScreenState extends State<SearchScreen> {
       clearSearchResults();
     }
 
-    if (searchResult.isEmpty && searching) {
-      body = Center(
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: [
-            Text(
-              'Searching for ${searchType.toLabel()} on: ${searchTextController.text}',
+    body = ValueListenableBuilder(
+      valueListenable: nss.searchLoadingStatus,
+      builder: (BuildContext context, bool searching, Widget? _) {
+        if (searchResult.isEmpty && searching) {
+          return Center(
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                Text(
+                  'Searching for ${searchType.toLabel()} on: ${searchTextController.text}',
+                ),
+              ],
             ),
-          ],
-        ),
-      );
-    } else {
-      body = ResponsiveMaxWidth(child: buildResultBody(profile));
-    }
+          );
+        }
 
+        return ResponsiveMaxWidth(child: buildResultBody(profile));
+      },
+    );
     return Scaffold(
       drawer: const StandardAppDrawer(skipPopDismiss: false),
       body: SafeArea(
@@ -192,7 +189,14 @@ class _SearchScreenState extends State<SearchScreen> {
                           .toList()),
                 ],
               ),
-              if (searching) const LinearProgressIndicator(),
+              ValueListenableBuilder(
+                  valueListenable: nss.searchLoadingStatus,
+                  builder: (context, searching, _) {
+                    if (searching) {
+                      return const LinearProgressIndicator();
+                    }
+                    return const SizedBox();
+                  }),
               Expanded(child: body),
             ],
           ),