announce server migration

frontend/src/routes/+page.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
   import { PUBLIC_BASE_URL } from "$env/static/public";
-  import { Button } from "sveltestrap";
+  import { Alert, Button } from "sveltestrap";
   import { userStore } from "$lib/store";
 </script>
 
@@ -12,6 +12,13 @@
   <meta property="og:url" content={PUBLIC_BASE_URL} />
 </svelte:head>
 
+<Alert fade={false} dismissible color="secondary">
+  Maintenance notice: I will be migrating pronouns.cc to a new server starting on May 27th at 12:00
+  UTC. I do not expect this migration to take very long, but the site will not be available during
+  that time.
+  <strong>No data will be lost.</strong>
+</Alert>
+
 <div>
   <h1><b>pronouns</b>.cc</h1>