message: feat: improve webmanifest
diff: {
  - "name": "Nextclade",
  "short_name": "Nextclade",
  + "name": "Nextclade",
  + "description": "Clade assignment, mutation calling, and quality control right inside your browser",
  + "theme_color": "#ffffff",
  + "background_color": "#ffffff",
  + "start_url": "/?source=pwa",
  + "display": "standalone",
  + "scope": "/",
  "icons": [
  {
  "src": "/icons/android-chrome-192x192.png",
  "sizes": "512x512",
  "type": "image/png"
  }
  - ],
  - "theme_color": "#ffffff",
  - "background_color": "#ffffff",
  - "display": "standalone"
  + ]
  }
  