Favicon provider/upload

[webysther]

Is your feature request related to a problem?

No

Describe the solution you'd like

• Support for favicon provider to download self-hosted icon from private hosts, or;
• Upload custom icon in (ico/png)

Additional context

Allow better use in dashboards or another places that use favicon.ico provided by the link:

[webysther]

Another interesting use is for collection, to have a custom icon too.