Resolve "Add functionnalities to proost (toplevel)" ✨️

Closes #39 🐔️👍️
Approved-by: aalbert <augustin.albert@bleu-azure.fr>
Approved-by: v-lafeychine <vincent.lafeychine@proton.me>
Approved-by: belazy <aarthuur01@gmail.com>

🦀️🍰🦀️🍰🦀️🍰

* format

* apply suggestion

* clippy

* apply suggestions

* Apply 1 suggestion(s) to 1 file(s)

* Apply 1 suggestion(s) to 1 file(s)

* Apply 1 suggestion(s) to 1 file(s)

* Apply 1 suggestion(s) to 1 file(s)

* Apply 1 suggestion(s) to 1 file(s)

* Apply 1 suggestion(s) to 1 file(s)

* apply suggested change

* apply suggestion

* apply suggestions

* add cmd option description

* check if terminal and add option for syntax coloring

* add tab

* clippy fix

* apply suggestion

* fix coloring

* apply suggestions

* apply suggestions

* Apply 1 suggestion(s) to 1 file(s)

* add everything listed in issue except full multiline editing