优化提现记录，优化提现页面

lib/pages/mine/withdraw_history_page.dart

@@ -147,8 +147,8 @@ class WithdrawHistoryPage extends StatelessWidget {
             ],
           ),
           SizedBox(height: 8.w,),
-          Text(
-            "${item.extDetailsInfo?.bankName}（${item.extDetailsInfo?.cardNum!.substring(item.extDetailsInfo!.cardNum!.length - 4)}）",
+          if(item.extDetailsInfo?.bankName != null && item.extDetailsInfo?.cardNum!.substring(item.extDetailsInfo!.cardNum!.length - 4) != null) Text(
+            "${item.extDetailsInfo?.bankName ?? ""}（${item.extDetailsInfo?.cardNum!.substring(item.extDetailsInfo!.cardNum!.length - 4) ?? ""}）",
             style: TextStyle(
               fontSize: 12.w,
             ),
@@ -172,7 +172,7 @@ class WithdrawHistoryPage extends StatelessWidget {
                     color: const Color.fromRGBO(153, 153, 153, 1)
                 ),
               ),
-              Text(
+              if(item.remitUrl != "" && item.remitUrl != null)Text(
                 "查看打款凭证",
                 style: TextStyle(
                     fontSize: 12.w,

lib/pages/mine/withdraw_page.dart

@@ -63,14 +63,6 @@ class WithdrawPage extends StatelessWidget {
                                       fontWeight: FontWeight.w500
                                   ),
                                 ),
-                                SizedBox(height: 6.w,),
-                                Text(
-                                  "1个工作日内到账",
-                                  style: TextStyle(
-                                      fontSize: 12.w,
-                                      color: const Color.fromRGBO(153, 153, 153, 1)
-                                  ),
-                                )
                               ],
                             ),
                             if(controller.nowBankCard.value.id == null) Text(