Fixes #80079

Updates our build to use TS 3.6. Fixes a few changes to dom apis and adds a monkey patch for the node typings break in 3.6

We seem to use the readonly property way of exposing these values more widely. Standardizing this a bit across the codebase

fixes #67063

* Add active folder feature

* use urilabel instead

* use resource instead of path

* show empty instead for activeFolderShort

* partially functioning grid view

* lots of toggling behavior and editor restore

* dimension changes

* restore layout and fix titlebar

* fix view dimensions on toggle/move

* increase timeout for debug config

* undo unnecessary changes to CSS

* put grid layout behind setting

* fix strict null checks

* address code comments from @bpasero

* changing key name