fix: 优化按钮组布局

src/App.vue

@@ -12,7 +12,6 @@ export default {
 
 <style lang="less">
 html,body,[id$="-layout"] {
-  font-size: 50px;
   margin: 0;
   padding: 0;
 }

src/views/main/components/ButtonGroup.vue

@@ -44,6 +44,8 @@ export default {
 
 <style scoped lang='less'>
 .button-group {
+  display: flex;
+  align-items: center;
   .custom-button {
     margin-right: 5px;
   }