Provide new 'short_name' OB Maps to better fit on Android app drawer.

Update theme colour to accent colour to provide thematic separation of notification bar and header bar when running full screen on android.

src/routes/manifest.webmanifest/+server.ts

@@ -9,10 +9,10 @@ export const prerender = true;
 export const GET: RequestHandler = ({ url }) => {
 	const manifest = {
 		name: 'OwlBoard Maps',
-		short_name: 'OwlBoard Maps',
+		short_name: 'OB Maps',
 		start_url: '/',
 		display: 'standalone',
-		theme_color: '#3c6f79',
+		theme_color: '#4fd1d1',
 		background_color: '#3d4952',
 		icons: [
 			{