We need to record `subscriptionId` when publishing a notebook, also we want to restrict notebooks to only from a particular `subscriptionId` when accessing `My published work` tab. This change passes the `subscriptionId` as part of the URL when publishing or accessing published notebooks.
* Remove enableGallery feature flag
* Fix bugs
* Add tests to increase coverage
* Move favorites functionality behind feature.enableGalleryPublish flag
* Show code cells in NotebookViewer
* Use cosmos db logo as persona image for sample notebook gallery cards
* Update gallery card snapshot to fix test