fix(renderer): clean out edge cases of cursor.position.restore

[pysan3]

We need to be more careful when to save and restore the cursor position as we cannot overwrite the position anymore with #1288.

closes #1310

Please read the LONG discussion from #1354 (comment) as it describes the issue and the reason thoroughly.

I will keep this as draft until I get some people to test this code as I might have missed some more edge cases.

Would you mind testing this code? @georgeguimaraes @mehalter @XavierChanth

{ 
  "pysan3/neo-tree.nvim",
  branch = "update-curpos-before-expand",
  version = false,

[mehalter]

I did some testing and this does seem to fix the linked issue! ❤️

[XavierChanth]

Working wonderfully @pysan3 ! Thanks so much

[pysan3]

Thanks @mehalter @XavierChanth !

Ready to roll @cseickel