add submit widget for mix carton

lib/pages/widgets/display_text.dart

@@ -6,7 +6,7 @@ import 'package:provider/provider.dart';
 
 class DisplayText extends StatelessWidget {
   final String? text;
-  final String? text1;
+  final Widget? subText;
   final String? labelTextKey;
   final IconData? iconData;
   final int? maxLines;
@@ -14,11 +14,10 @@ class DisplayText extends StatelessWidget {
   final Color? borderColor;
   final Widget? icon;
   
-
   const DisplayText({
     Key? key,
     this.text,
-    this.text1,
+    this.subText,
     this.labelTextKey,
     this.iconData,
     this.maxLines = 1,
@@ -72,12 +71,9 @@ class DisplayText extends StatelessWidget {
                         text!,
                         style: textStyle,
                       ),
-                       text1 == null
+                       subText == null
                     ? Container()
-                    : Text(
-                        text1!,
-                        style: textStyle,
-                      ),
+                    : subText!,
               ],
             ),
           ),