Adding a command

[o0idea-lab0o]

Hi. I like your program. Very straight forward and fast. I am not well versed in Rust, but I do have some possible ideas for improvement:

1. It would be nice to add a delete or remove command for a single/group of database instances.
   eg: cli-invoice company / client / invoice del [name]

2. Add optional specific date/hours/overtime specific instance questions during invoice generate?
   eg: Enter date / time / overtime worked: (or 'done' to finish) :

3. Is there no other option, but to use headless_chrome as the pdf generator? For those who would rather stay away from Chrome related bits.

Thank you for all your efforts.

Regards.
Idea-Lab