* Handle delayed Notebook provider registration
- Fixes#3197 Notebooks: builtin provider always used on reopen with notebook file visible
- Fixes#3414 Can't refresh kernel after connect to big data cluster
There are 3 parts to this fix:
- If no notebook provider other than the default is installed, we warn users and prompt to install the SQL2019 extension
- We wait on the extension host registration to complete before determining which provider to use
- We know that the extension registration of the provider instance will be after package.json is read, so if we wait after registration for 10 seconds to give this a chance to happen before returning a provider to the front end
* Remove launch.json change that was added accidentally
* Fix timeout not being the expected value
* Removed console log left in during debugging
* Remove unnecessary whitespace
* Fix unit test failure
* Name the registration better, and remove outdated comments
* Notebook saves are broken #3432
* Misc change
* Save notebook uri to This
* Untitled notebook save including review comments #3432
* Cleanup
* Misc changes
* improve the visual effect for selected card
* remove shadow for unselected card as per Smitha's suggestion
* fix the issue of status icon not changing when new theme selected
- Set markdown as language for markdown cell
- Fix issue where after loading language from cell metadata, always override it. This made the "language" feature irrelevant in the cell.
- Fixed tests with new behavior (assumption: cell-level language overrides notebook-level definition) and added new test to cover this too
- Add edit API that can be used in the extension
- Separated document and editor classes out since this is the point those get big. I can refactor back in if needed to ease code review
- Based this off text editing APIs but tweaked for the fact this is a cell/array based set of edits
* Allow for cell unselection
* PR Feedback: use event.stopPropagation() when multiple events can fire
* Ensure markdown goes into Preview mode when cell not selected
* agent feature usage metrics
* generalized feature telemetry via dialogs
* renamed eventName property to dialogName
* made dialogName an optional field
* change height calcs to proper tree height
* agent fixes
* fit step tree
* fix rendering issue
* fixed spinning wheel position
* added horizontal scrolling to steps tree
* removed typo
