fixed issues namely reveloved around chat

frontend/src/routes/[fam]/[username]/preferences/+page.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-	import { enhance } from '$app/forms';
+	import { enhance, applyAction } from '$app/forms';
 	import { ViewHeader, CardGrid, Card, Button } from '$lib/components';
 
 	let { data, form } = $props();
@@ -24,7 +24,20 @@
 {:else}
 	<CardGrid>
 		<Card cols={2} title="Appearance">
-			<form method="POST" action="?/update" use:enhance>
+			<form
+				method="POST"
+				action="?/update"
+				use:enhance={() => {
+					return async ({ result }) => {
+						// Apply the action result (so the success/error message
+						// shows) WITHOUT resetting the form — the default enhance
+						// clears name/email inputs on a successful submit.
+						if (result.type === 'success' || result.type === 'failure') {
+							await applyAction(result);
+						}
+					};
+				}}
+			>
 				<div style="margin-bottom:1rem">
 					<label style="display:block;font-size:0.85rem;color:#374151;margin-bottom:0.25rem">
 						Display Name
@@ -83,7 +96,9 @@
 					<p style="color:#059669;font-size:0.85rem;margin-bottom:0.5rem">Saved!</p>
 				{/if}
 
-				<Button type="submit" variant="primary">Save</Button>
+				<div class="form-actions">
+					<Button type="submit" variant="primary">Update preferences</Button>
+				</div>
 			</form>
 		</Card>
 
@@ -97,3 +112,11 @@
 		</Card>
 	</CardGrid>
 {/if}
+
+<style>
+	.form-actions {
+		margin-top: 1.25rem;
+		padding-top: 1.25rem;
+		border-top: 1px solid #e5e7eb;
+	}
+</style>