保持分数框个数的一致性

src/features/mark/MarkBoardMouse.vue

@@ -122,8 +122,8 @@ export default defineComponent({
   border: 1px solid grey;
 }
 .single-score {
-  width: 30px;
-  height: 30px;
+  width: 29px;
+  height: 29px;
   display: grid;
   place-content: center;