fix: add scrollbar-gutter style to modal for better layout stability

Author: yaroslav8765

adminforth/spa/src/afcl/Dialog.vue

@@ -6,7 +6,7 @@
     <slot name="trigger"></slot>
   </div>
   <Teleport to="body">
-    <div ref="modalEl" tabindex="-1" aria-hidden="true" class="hidden overflow-y-auto overflow-x-hidden fixed top-0 right-0 left-0 z-50 justify-center items-center w-full md:inset-0 h-full max-h-full">
+    <div ref="modalEl" tabindex="-1" aria-hidden="true" class="[scrollbar-gutter:stable] hidden overflow-y-auto overflow-x-hidden fixed top-0 right-0 left-0 z-50 justify-center items-center w-full md:inset-0 h-full max-h-full">
       <div v-bind="$attrs" class="relative p-4 max-w-2xl max-h-full" :class="($attrs.class as string)?.includes('w-') ? '' : 'w-full'">
         <!-- Modal content -->
         <div class="relative bg-lightDialogBackgorund rounded-lg shadow-sm dark:bg-darkDialogBackgorund">