display tweaks and approval page timing

src/views/Settings.svelte

@@ -17,7 +17,7 @@
 <Nav />
 
 {#await invoke('get_config') then config}
-    <div class="mx-auto mt-3 max-w-md">
+    <div class="max-w-md mx-auto mt-1.5 p-4">
         <h2 class="text-2xl font-bold text-center">Settings</h2>
 
         <ToggleSetting title="Start minimized" bind:value={$appState.config.start_minimized} on:update={save}>
@@ -34,6 +34,13 @@
             </svelte:fragment>
         </NumericSetting>
 
+        <NumericSetting title="Listen port" bind:value={$appState.config.listen_port} min=1 on:update={save}>
+            <svelte:fragment slot="description">
+                Listen for credentials requests on this port. 
+                (Should be used with <code>$AWS_CONTAINER_CREDENTIALS_FULL_URI</code>)
+            </svelte:fragment>
+        </NumericSetting>
+
         <Setting title="Update credentials">
             <Link slot="input" target="EnterCredentials">
                 <button class="btn btn-sm btn-primary">Update</button>