优化TabPage标签布局：使用justify-content: space-between实现标题靠左显示，关闭按钮靠右显示

AutoRobot/Windows/Robot/Web/src/DockLayout/TabPage.vue

@@ -100,6 +100,7 @@ const closeTab = (tabId) => {
 .tab-item {
   display: flex;
   align-items: center;
+  justify-content: space-between;
   height: 26px;
   padding: 0 16px;
   margin-left: 1px;
@@ -112,8 +113,7 @@ const closeTab = (tabId) => {
   font-size: 12px;
   user-select: none;
   position: relative;
-  min-width: fit-content;
-  flex: 0 0 auto;
+  width: fit-content;
 }
 
 .tab-title {
@@ -122,6 +122,8 @@ const closeTab = (tabId) => {
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
+  flex: 1;
+  margin-right: 8px;
 }
 
 .tab-item.active {
@@ -144,7 +146,6 @@ const closeTab = (tabId) => {
 }
 
 .button-icon {
-  margin-left: 8px;
   margin-right: -8px;
   background: transparent;
   border: none;