License formatting

[abstractionfactory]

Currently, the license file display just shows the filename. It would be good to have a prefix to lessen the confusion:

It could be formatted as:

License

File: LICENSE
MIT

Or:

License

MIT in LICENSE

[damianstasik]

I've prepared a preview of both proposals so we can see them in action:

1. https://format-licence-block.registry-ui-dxi.pages.dev/
2. https://format-license-block-differe.registry-ui-dxi.pages.dev/

[abstractionfactory]

Either works, I have no strong opinion on which one it should be. Probably the first, and maybe we can add a / or a file icon in front to indicate that this is a file.