Lowercase the tab title's fallback name

The title the tab falls back to before the session names the app was the one
user-visible string the brand pass missed; setBaseTitle overwrites it as soon
as the session arrives, so it shows only for that first moment.

web/src/lib/notify/notify.ts

@@ -1,6 +1,6 @@
 import { withBase } from "../basePath";
 
-let baseTitle = "INBUXA";
+let baseTitle = "inbuxa";
 let faviconCanvas: HTMLCanvasElement | null = null;
 let baseFavicon: HTMLImageElement | null = null;