fix(mobile): After editing people name, back button close the app (#18992)

* fix: update dialog to not use root navigator in multiple pages so back button won't close the app

* Remove unrelated changes to PR

mobile/lib/pages/library/people/people_collection.page.dart

@@ -27,6 +27,7 @@ class PeopleCollectionPage extends HookConsumerWidget {
     ) {
       return showDialog(
         context: context,
+        useRootNavigator: false,
         builder: (BuildContext context) {
           return PersonNameEditForm(personId: personId, personName: personName);
         },

mobile/lib/pages/search/person_result.page.dart

@@ -28,6 +28,7 @@ class PersonResultPage extends HookConsumerWidget {
     showEditNameDialog() {
       showDialog(
         context: context,
+        useRootNavigator: false,
         builder: (BuildContext context) {
           return PersonNameEditForm(
             personId: personId,

mobile/lib/widgets/asset_viewer/detail_panel/people_info.dart

@@ -31,6 +31,7 @@ class PeopleInfo extends ConsumerWidget {
     ) {
       return showDialog(
         context: context,
+        useRootNavigator: false,
         builder: (BuildContext context) {
           return PersonNameEditForm(personId: personId, personName: personName);
         },