feat: add cli overrides param

[jbedard]

What is the best name for the param? I would have used --override if -o wasn't already used for the output 🤷

[songkeys]

Thank you for this PR.

GPT says: You can use --force or --replace as a suitable replacement. These names convey the idea that the parameter allows you to forcefully override or replace certain settings or values.

What do you think?

Edit: Actaully, -s, --set <name>=<value> looks good to me. I also think -v, --value <name>=<value> could be a good name given that the value set might not exist yet and thus it's not "overrides" but just "sets".

[jbedard]

Note that this is essentially https://swc.rs/docs/usage/cli#--config--c, using --config to "override" a value. I'd still vote for --set out of all these options but the choice is yours...

[songkeys]

It looks good to me.