🌀(tab): 调整 tab tools 样式

package/component/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@layui/layui-vue",
-  "version": "1.1.5-alpha.2",
+  "version": "1.1.5-alpha.3",
   "author": "就眠儀式",
   "license": "MIT",
   "description": "a component library for Vue 3 base on layui-vue",

package/component/src/component/tab/index.less

@@ -227,6 +227,7 @@
 }
 
 .layui-tab-card>.layui-tab-head .layui-tab-bar {
+  width: 40px;
   line-height: 40px;
   border-radius: 0;
   border-top: none;
@@ -266,9 +267,9 @@
 }
 
 .layui-tab-bar .layui-icon {
-  position: relative;
-  display: inline-block;
   top: 3px;
+  font-size: 13.6px;
+  display: inline-block;
   transition: all 0.3s;
   -webkit-transition: all 0.3s;
 }