update 优化部门树和分类树当内容超出容器时显示滚动条

src/components/UserSelect/index.vue

@@ -7,6 +7,7 @@
           <el-card shadow="hover">
             <el-input v-model="deptName" placeholder="请输入部门名称" prefix-icon="Search" clearable />
             <el-tree
+              style="max-height: 600px; overflow-y: auto;"
               ref="deptTreeRef"
               class="mt-2"
               node-key="id"

src/views/system/post/index.vue

@@ -6,6 +6,7 @@
         <el-card shadow="hover">
           <el-input v-model="deptName" placeholder="请输入部门名称" prefix-icon="Search" clearable />
           <el-tree
+            style="max-height: 600px; overflow-y: auto;"
             ref="deptTreeRef"
             class="mt-2"
             node-key="id"

src/views/system/user/index.vue

@@ -6,6 +6,7 @@
         <el-card shadow="hover">
           <el-input v-model="deptName" placeholder="请输入部门名称" prefix-icon="Search" clearable />
           <el-tree
+            style="max-height: 600px; overflow-y: auto;"
             ref="deptTreeRef"
             class="mt-2"
             node-key="id"

src/views/workflow/processDefinition/index.vue

@@ -6,6 +6,7 @@
         <el-card shadow="hover">
           <el-input v-model="categoryName" placeholder="请输入流程分类名" prefix-icon="Search" clearable />
           <el-tree
+            style="max-height: 600px; overflow-y: auto;"
             ref="categoryTreeRef"
             class="mt-2"
             node-key="id"

src/views/workflow/processInstance/index.vue

@@ -6,6 +6,7 @@
         <el-card shadow="hover">
           <el-input v-model="categoryName" placeholder="请输入流程分类名" prefix-icon="Search" clearable />
           <el-tree
+            style="max-height: 600px; overflow-y: auto;"
             ref="categoryTreeRef"
             class="mt-2"
             node-key="id"

src/views/workflow/task/myDocument.vue

@@ -6,6 +6,7 @@
         <el-card shadow="hover">
           <el-input v-model="categoryName" placeholder="请输入流程分类名" prefix-icon="Search" clearable />
           <el-tree
+            style="max-height: 600px; overflow-y: auto;"
             ref="categoryTreeRef"
             class="mt-2"
             node-key="id"