Added automatic bullet point "- " when a list is made

[Nokse22]

Basically if the previous line started with "- " and a new line is created it will start with "- " as well.

I know you said that you would add checkboxes, but sometimes a simple list like this is useful too.

[vixalien]

Hey. Lovely work. Thanks!!

I would also suggest adding more characters other than -. We can also allow + and * to be used for lists (as per the markdown spec)

Another issue is that there is no way to "exit the list mode". Modern markdown editors detect if you press enter again and choose to exit the vim mode. Here is an example:

Screencast.from.2023-12-16.16-17-05.webm

With this PR as a foundation, we can also support making ordered lists. Thanks again!!

[Nokse22]

I'm really glad you like it 😄️.
I'll add the other characters and a way to exit pressing return again.
I can try adding ordered list creation, but reordering the items with the right numbers when one is deleted sounds very complicated to me.

[vixalien]

but reordering the items with the right numbers when one is deleted sounds very complicated to me.

This is not necessary. I think the better idea is that users update their numbers manually (don't bother yourself)

[vixalien]

Thanks. I will take a look at this tomorrow.

[Nokse22]

Found and fixed a bug where \s matched new line and spaces. Regex is hard 😵‍💫️