How to set theia icon on title bar with custom name

@Prakhar123 thank you for the discussion, I believe you can follow this suggestion Branding: Theia should has favicon icon · Issue #3600 · eclipse-theia/theia · GitHub.

As for the application name you can set it in your package.json like so:

"theia": {
  "frontend": {
    "config": {
      "applicationName": "Foo",
    }
  }
},