ensure modal can scroll vertically if too high for screen size

src/frontend/components/interfaces/ImportInterfacesModal.vue

@@ -1,6 +1,7 @@
 <template>
     <div v-if="isShowing" class="fixed inset-0 bg-gray-500 bg-opacity-75 transition-opacity flex items-center justify-center">
-        <div class="bg-white dark:bg-zinc-900 rounded-lg shadow-xl max-w-2xl w-full mx-4">
+        <div class="flex w-full h-full p-4 overflow-y-auto">
+            <div class="my-auto mx-auto w-full bg-white dark:bg-zinc-900 rounded-lg shadow-xl max-w-2xl">
 
                 <!-- title -->
                 <div class="p-4 border-b dark:border-zinc-700">
@@ -58,6 +59,7 @@
 
             </div>
         </div>
+    </div>
 </template>
 
 <script>