Slightly better handling of files tress states
Handle node collapsing
Add "autoExpandRoot" property to keep the same behavior on other trees
woups... :scream:
Slightly better handling of files trees states

* origin/pr/11198:
  woups... :scream:
  Add "autoExpandRoot" property to keep the same behavior on other trees
  Handle node collapsing
  Slightly better handling of files tress states