perf: 优化modal弹窗样式

src/components/Modal/src/index.less

@@ -108,19 +108,19 @@
   padding: 24px !important;
 }
 
-@media screen and (max-height: 600px) {
+@media screen and (height <= 600px) {
   .ant-modal {
     top: 60px;
   }
 }
 
-@media screen and (max-height: 540px) {
+@media screen and (height <= 540px) {
   .ant-modal {
     top: 30px;
   }
 }
 
-@media screen and (max-height: 480px) {
+@media screen and (height <= 480px) {
   .ant-modal {
     top: 10px;
   }