fix feedback popup layout

src/app/admin/feedback/Feedback.svelte

@@ -20,6 +20,7 @@
   {dateFormat.format(new Date(value))}
 {/snippet}
 
+<div class="h-screen flex flex-col justify-between">
   <DataTable
     data={feedbacks}
     count={true}
@@ -32,4 +33,7 @@
     onClick={(feedback) => (activeFeedback = feedback)}
   />
 
+  {#key activeFeedback}
     <BottomBar feedback={activeFeedback} />
+  {/key}
+</div>