diff: simplify
diff: simplify
IDEA-128312 diff: fix sync scroll for editors with opened search panel
immutable map for environment variables component
diff: do not adjust scroll position at changed editor height

* it's fixes IDEA-126302
* It's unclear, if wo should scroll left-to-right or right-to-left
* it's not very common usecase
IDEA-128731, IDEA-129013  don't update system selection when selection is changed in IDEA editor programmatically