Allow hiding unmatching nodes when filtering #2868
Description
Right now our tree filter feature highlights the match in the item tile and sorts matches first in the list, leaving the (unmatching) rest visible:
Even though VS Code also never hides tree items, I think it's something really useful still to show only filtered ones and hide everything else, especially for very long list i.e. if I want to focus only on a subset of items really.
It could be either a setting in extension settings (like "Cosmos DB: Filter behaviour" and then a bool "Only Highlight Matches", when false it should hide rather than highlight) or maybe we can add a checkbox right to the filter entry?