* Addresses #26184 - use configuration for pinned default

* Honors the preview editor setting above all

* Removes passing undefined to pinned internally
re: requested code review changes

* Removes unnecessary undefined

* feedback

* Make listing directories first an option #29329

* Added refresh on `dirsFirst` config value changed

* Switch sorting configuration to enum

* Added `filesFirst` sorting

* Added sorting by type

* Got rid of the `path` dependency

* Added sorting by last modified date

* Merge conflict fix

* `modified` sorting order changed to descending

* New compareFileExtensions comparer added for TypeSorter

* Switched to a single self-contained explorer sorter

* Improved description of 'explorer.sortOrder' config option

Workaround for #28593

**Bug**
TypeScript Server is hanging onto a file in `node_modules/.staging`, causing npm installs to fail. I believe the root cause is that 0d5c9f41 changed vscode logic to always open the `triggerFile` in config diagnostic events.  In this case, TS sends us a trigger file from `.staging` which we then tell the TS Server to open

**Fix**
Disable checking the trigger file

Q data during pty launch delay Fixes: #29184