[mob][photos] Show all faces in 'All' section of faces

mobile/lib/ui/viewer/search/result/people_section_all_page.dart

@@ -1,17 +1,51 @@
+import "dart:async";
+
 import 'package:flutter/material.dart';
+import "package:photos/events/event.dart";
 import "package:photos/generated/l10n.dart";
 import "package:photos/models/search/search_result.dart";
+import "package:photos/models/search/search_types.dart";
 import "package:photos/theme/ente_theme.dart";
 import "package:photos/ui/viewer/search_tab/people_section.dart";
 
-class PeopleSectionAllPage extends StatelessWidget {
-  final Future<List<SearchResult>> searchResults;
-
+class PeopleSectionAllPage extends StatefulWidget {
   const PeopleSectionAllPage({
     super.key,
-    required this.searchResults,
   });
 
+  @override
+  State<PeopleSectionAllPage> createState() => _PeopleSectionAllPageState();
+}
+
+class _PeopleSectionAllPageState extends State<PeopleSectionAllPage> {
+  late Future<List<SearchResult>> sectionData;
+  final streamSubscriptions = <StreamSubscription>[];
+
+  @override
+  void initState() {
+    super.initState();
+    sectionData = SectionType.face.getData(context);
+
+    final streamsToListenTo = SectionType.face.viewAllUpdateEvents();
+    for (Stream<Event> stream in streamsToListenTo) {
+      streamSubscriptions.add(
+        stream.listen((event) async {
+          setState(() {
+            sectionData = SectionType.face.getData(context);
+          });
+        }),
+      );
+    }
+  }
+
+  @override
+  void dispose() {
+    for (var subscriptions in streamSubscriptions) {
+      subscriptions.cancel();
+    }
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     final smallFontSize = getEnteTextTheme(context).small.fontSize!;
@@ -24,7 +58,7 @@ class PeopleSectionAllPage extends StatelessWidget {
         title: Text(S.of(context).people),
       ),
       body: FutureBuilder<List<SearchResult>>(
-        future: searchResults,
+        future: sectionData,
         builder: (context, snapshot) {
           if (snapshot.connectionState == ConnectionState.waiting) {
             return const Center(child: CircularProgressIndicator());

mobile/lib/ui/viewer/search_tab/people_section.dart

@@ -86,9 +86,7 @@ class _PeopleSectionState extends State<PeopleSection> {
               if (shouldShowMore) {
                 routeToPage(
                   context,
-                  PeopleSectionAllPage(
-                    searchResults: Future.value(widget.examples),
-                  ),
+                  const PeopleSectionAllPage(),
                 );
               }
             },