调整大屏列表逻辑

src/views/newMap/newMapdraft/mapoperate/splitScreen.vue

@@ -174,6 +174,7 @@ export default {
                     height: data.height
                 };
             }
+            data.offsetList.length = data.bigScreenSplitConfig.length + 1;
             if (data.offsetList && data.offsetList.length) {
                 this.list = [];
                 data.offsetList.forEach(item => {
@@ -189,6 +190,7 @@ export default {
         },
         deleteModel(list, index) {
             list.splice(index, 1);
+            this.list.pop();
             this.clear();
             this.cardMode = 'generate';
         },