feat: add option to disable toggle of selected item in page size selector

Author: kulikp1

adminforth/spa/src/components/ResourceListTable.vue

@@ -349,6 +349,7 @@
         v-model="pageSizeInternal" 
         :options="pageSizeOptionsComputed" 
         :searchDisabled="true" 
+        :disableTogleOfSelectedItem="true"  
         :style="{ width: selectDynamicWidth }"
         :placeholder="pageSizeInternal?.toString()"        
         class="text-sm "