lap: `classnames` to replace `clsx`

[devraj]

Is your feature request related to a problem? Please describe.
We currently use clsx to conditionally apply class names. @Thinkmill + @JedWatson maintain classnames, consider moving to this plugin

Describe the solution you'd like
Migrate from clsx to classnames

Describe alternatives you've considered
NA

Additional context
I am voting for this purely because classnames has a neater API