Add favicon to public folder

[bilalesi]

Add favicon icon to public folder

Description

How has this been tested?

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added necessary unit and integration tests.
• I have added screenshots (if applicable), in the comment section.

[danburonline]

I suggest using an .ico file instead of a .png for the favicon to support multiple sizes. The current icon (see screenshot) lacks the desired quality and also doesn't look much like "an icon". It would be beneficial to create a manifest file with various sizes, too! I recommend using PWABuilder to quickly generate these files.

PS: This will allow Fusion to be installed as a PWA.

[bilalesi]

I suggest using an `.ico` file instead of a `.png` for the favicon to support multiple sizes. The current icon (see screenshot) lacks the desired quality and also doesn't look much like "an icon". It would be beneficial to create a manifest file with various sizes, too! I recommend using [PWABuilder](https://www.pwabuilder.com/) to quickly generate these files.

PS: This will allow Fusion to be installed as a PWA.

Thanks daniel, feedback implemented (since the app only running in desktop, i generate the favicons only for that )