Deal with flash of wrong platform

packages/website/src/lib/GhReleasesDownload.svelte

@@ -2,11 +2,12 @@
     import type { Endpoints } from "@octokit/types";
 
     export let releaseData: Endpoints["GET /repos/{owner}/{repo}/releases/latest"]["response"]["data"];
+    import { browser } from '$app/environment';
     // console.log(releaseData);
 </script>
 
 <div class="release">
-    {#if navigator}
+    {#if !browser &&navigator}
         {#if navigator.platform.startsWith("Win")}
             {@const asset  =releaseData.assets.filter((a) => a.name.endsWith(".exe"))[0]}
             {#if asset}
@@ -25,6 +26,7 @@
             <a href={asset.browser_download_url}>Download AppImage</a>
         {/if}
         {/if}
+    <!-- {:else} -->
     {/if}
     <p>Latest release: <a href={releaseData.html_url}>{releaseData.name}</a></p>
 </div>