style: fix border color and box-sizing

components/meetingTimePicker/meetingTimePicker.acss

@@ -34,6 +34,7 @@ picker-view .column {
     background: rgba(10, 10, 10, 0.06);
     border-radius: 8rpx;
     margin-right: 24rpx;
+    box-sizing: border-box;
 }
 
 .tab>view>text {
@@ -64,7 +65,7 @@ picker-view .column {
 .coustom-end {
     height: 144rpx;
     position: relative;
-    border-bottom: 2rpx solid rgba(25, 31, 37, 0.12);
+    border-bottom: 1px solid rgba(239, 242, 245, 1);
 }
 
 .coustom-end>text {

components/meetingTimePicker/meetingTimePicker.js

@@ -169,7 +169,7 @@ Component({
     endDurationPostTime: ''
   },
   props: {
-    visibleItemCount: 3
+    visibleItemCount: 5
   },
   didMount() {
     this.setInitialValue();