chore: update branding assets to Maqtaa

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

public/ts/main.ts

@@ -1,6 +1,6 @@
 import '../css/tailwind.css';
 import '../img/favicon-32.png';
-import '../img/opengist.png';
+import '../img/maqtaa.png';
 import jdenticon from 'jdenticon/standalone';
 import PDFObject from 'pdfobject';