修复日志折叠后显示行数不正确的问题

src/components/panel/footer/magic-log.vue

@@ -85,7 +85,7 @@ const _pushLog = items => {
 		return {
 			html,
 			multiple: lines > 3,
-			lines: lines - 4,
+			lines: lines - 3,
 			showMore: false
 		}
 	})