Fix cannot use Back system button to back to email list from search view on mobile

Signed-off-by: dab246 <tdvu@linagora.com>

lib/features/search/email/presentation/search_email_view.dart

@@ -60,7 +60,13 @@ class SearchEmailView extends GetWidget<SearchEmailController>
         child: Container(
           color: Colors.white,
           child: Column(children: [
-            Container(
+            PopScope(
+              canPop: false,
+              onPopInvokedWithResult: (_, __) {
+                if (!PlatformInfo.isAndroid) return;
+                controller.closeSearchView(context: context);
+              },
+              child: Container(
                   height: 52,
                   color: Colors.white,
                   padding: SearchEmailViewStyle.getAppBarPadding(
@@ -79,6 +85,7 @@ class SearchEmailView extends GetWidget<SearchEmailController>
                     }
                   })
               ),
+            ),
             const Divider(color: AppColor.colorDividerComposer, height: 1),
             _buildListSearchFilterAction(context),
             Obx(() => SearchEmailLoadingBarWidget(