* Reapply "[web] Show DS Navigation for all SAAS users regardless of feature fla…"
This reverts commit 8d4096a7e4b6a7894b1bef14290548225deebd57.
* Fix: `hasDsNav` should check `isOverleaf` !!!
* Change `hasDsNav` from a boolean to a function call for dynamic evaluation
GitOrigin-RevId: 17463ac113a4278ed344622552d83da93b208b4d