Add a splash screen and app icon

[JRIngram]

Feature Request - Add a splash screen and app icon

Describe the feature

The app should have a splash screen and an icon in the app tray so that it looks more user friendly.

Example user stories

As a user,
I would like a splash screen and icon in the app tray,
So that the app feels more trustworthy

If this request is related to a problem, describe the problem

Alternate solutions to the problem

Example implementations of similar features

Additional context