[Feature Request] Don't automatically increase number when typing new entry in list if preceded by two or more `0.`s.

[RokeJulianLockhart]

When typing numbered lists, I tend to use

0. entry
0. entry
0. entry

rather than

0. entry
1. entry
2. entry

because most markdown processors automatically number the list, as Zettel does. However, when making these lists, when I press enter to add a new line, Zettel helpfully automatically creates a 1.. I don't want this, because my lists is obviously supposed to be automatically numbered.

Consequently, if the list already contains 2 or more 0.s, Zettel should put another 0. instead of a 1..

[damionx7]

Sure. I will add a settings option for this.