Checks UI, tab labels should be different

[tilpner]

The tab labels are all identical after truncation, which makes them useless. They could instead display the difference, here x86_64-darwin vs aarch64-linux.

[grahamc]

Do you have an idea on what would be a nice label?

[tilpner]

Given that the package combinations would identical for each, just x86_64-linux or system: x86_64-linux should be good

[grahamc]

It isn't identical in scenarios like:

@grahamcofborg build A
@grahamcofborg build B
@grahamcofborg build C

this will result in 3x Checks per command.

[tilpner]

@ofborg build A
@ofborg build B
=> "A: x86_64-linux", "A: aarch64-linux", "B: x86_64-linux", "B: aarch64-linux"

@ofborg build A B
=> "A, B: x86_64-linux", "A, B: aarch64-linux"

This might still result in identical labels after truncation, for long attribute names. Another alternative would be flipping it around, so that the system is always in the label, but that feels awkward.