Accept button text as a param

lib/ui/backup_folder_selection_page.dart

@@ -10,9 +10,11 @@ import 'package:photos/ui/thumbnail_widget.dart';
 
 class BackupFolderSelectionPage extends StatefulWidget {
   final bool shouldSelectAll;
+  final String buttonText;
 
-  const BackupFolderSelectionPage(
-    this.shouldSelectAll, {
+  const BackupFolderSelectionPage({
+    @required this.shouldSelectAll,
+    @required this.buttonText,
     Key key,
   }) : super(key: key);
 
@@ -106,7 +108,7 @@ class _BackupFolderSelectionPageState extends State<BackupFolderSelectionPage> {
             child: Container(
               padding: EdgeInsets.only(left: 60, right: 60, bottom: 32),
               child: button(
-                "start backup",
+                widget.buttonText,
                 fontSize: 18,
                 onPressed: _backedupFolders.length == 0
                     ? null

lib/ui/home_widget.dart

@@ -349,7 +349,12 @@ class _HomeWidgetState extends State<HomeWidget> {
                         .hasGrantedLimitedPermissions()) {
                       PhotoManager.presentLimited();
                     } else {
-                      routeToPage(context, BackupFolderSelectionPage());
+                      routeToPage(
+                          context,
+                          BackupFolderSelectionPage(
+                            shouldSelectAll: true,
+                            buttonText: "start backup",
+                          ));
                     }
                   },
                 ),

lib/ui/loading_photos_widget.dart

@@ -42,7 +42,12 @@ class _LoadingPhotosWidgetState extends State<LoadingPhotosWidget> {
         if (LocalSyncService.instance.hasGrantedLimitedPermissions()) {
           // Do nothing, let HomeWidget refresh
         } else {
-          routeToPage(context, BackupFolderSelectionPage(true));
+          routeToPage(
+              context,
+              BackupFolderSelectionPage(
+                shouldSelectAll: true,
+                buttonText: "start backup",
+              ));
         }
       }
     });