* Test commands for proper names and search terms
Assert that the `Command.name()` is equal to `Signature.name`
Check that search terms are not just substrings of the command name as
they would not help finding the command.
* Clean up search terms
Remove redundant terms that just replicate the command name.
Try to eliminate substring between search terms, clean up where
necessary.
* fix into filesize tests and filesize
* tweaks
* added span back for like the 10th time
* Update filesize.rs
Co-authored-by: JT <547158+jntrnr@users.noreply.github.com>