Custom prompt when generating commit messages

[r4wand]

It would be nice to have the ability to add custom instructions when generating commit messages. that way it can follow your own commit styles and be consistent.

For example, you might want it to follow Conventional Commits

[ibraheemalayan]

I support that too, we also use gitmoji.dev in combination with Conventional Commits.

[sammaxjorden]

we need this please!

[lszomoru]

Closing as duplicate of #526. See this comment on how to specify custom instructions for commit message generation.