[Feature]: Shift-Enter inside list to enter a new line

[tierriminator]

Is your feature request related to a problem? Please describe.

Currently, when pressing Shift + Enter inside of a list item, a new line is inserted at the indentation level of the current (nested) list.
For example, if we write

- l1
  - l2

and press Shift + Enter, our cursor will end up here:

- l1
  - l2
  |

Describe the solution you'd like

For list editing, it is quite common that the cursor stays within the current list item when pressing Shift + Enter, to allow to enter new lines.
In the above example, the cursor would end up here:

- l1
  - l2
    |

This allows for easy restructuring of text in a text-heavy list item.

Describe alternatives you've considered

No response

Additional context

No response