Modify the table title name for site configuration according to the diagram

https://dev.wormwood.com.sg/zentao/task-view-8.html

Strides-Admin/src/views/site/SiteManagement.vue

@@ -95,7 +95,7 @@
         </template>
       </el-table-column>
       <el-table-column
-        label="Rates"
+        label="Rate Plan"
         prop="siteName"
         align="center"
         min-width="200">

Strides-Admin/src/views/site2/index.vue

@@ -95,7 +95,7 @@
         </template>
       </el-table-column>
       <el-table-column
-        label="Rates"
+        label="Rate Plan"
         prop="siteName"
         align="center"
         min-width="200">