Restore code actions order

[pepeiborra]

An unfortunate side effect of recent changes is that the extend import suggestions ended up at the bottom of the list.

This change puts back all code actions provider together so they can be reordered more easily, and restores the previous order where extend imports would be near the top of the list

[konn]

LGTM 👍

[jneira]

maybe add some tests about the ordering would be great, to not break it (relative between different kinds of?)

[pepeiborra]

maybe add some tests about the ordering would be great, to not break it (relative between different kinds of?)

Such tests would require adjustment every time a new code action is added, an existing code action is changed, etc. So I'm not keen on adding them, some tests are more trouble than they're worth.

But if anyone else wants to do it, I won't oppose either.

[jneira]

we could check at least the preferred ones are below the cut limit, but definitely not in this pr
otoh relative tests are more maintainable, cause tests than a is before b could be kept while a and b exist