* Fixed#4181 and #4167
The problems are:
- When change Kernel, setProviderIdForKernel switches Kernel first. So when we switch kernel across provider for exmple from PySpark3 to SQL. The Kernel is set SQL already in ClientSession.changeKernel. Then we lost oldKernel info.
The fix is cache the old session in model before switch and use it to get the correct context
- SQL Kenerl could make mulitple connects from "Add new connection". While we didn't track them, those connections didn't close properly when close the notebook
The fix is saving the connections made from "Add new connection" in model. and close them and activeConnection when close notebook
Problem is not solved yet in this PR:
- Didn't shutdown Jupytper when swich kernel from spark kernel to SQL.
* adding context
* apply extension changes
* shimming disconnect
* add data explorer context menu and add disconnect to it
* clean up shim code; better handle errors
* remove tpromise
* simplify code
* Add azdata.d.ts for new extensibility APIs
* Update azdata typing files for connection API proposal
* Add implementation for azdata module
* Fix build break in agent
* WIP adding scripting support.
* Adding deploy command along with additional env vars needed.
* Adding script generation that sets envars, kube context, and mssqlctl
* Adding test email for docker email envar until we update UI.
* Adding cluster platform detection and disabling generate script after first click.
* Fix spacing and adding comment.
* add bot configs to enable bot features
* update classifier label strings
* initial check in should perform be false to double ensure things are working properly
- Upate vscode-nls to 4.0.0 in notebook extension. Should be fix for Insiders build failure due to localization package failing
- Updated samples to remove as vscode-nls if not needed, or update if still needed
- Updated samples using `npm audit fix`
- Fixed compile errors in all the samples
- Fixes#4129 Overlapping command help windows in notebook
- Do not show parameter hints for inactive cells, to avoid them hanging around when no longer selected
- Fixes#4116 Notebooks: Intellisense Doesn't Work using Add New Connection
- Move connect/disconnect logic to 1 place (code component) instead of 2
- Handle the case where you connect after choosing active cell. We now hook to the event and update connection
- Fix issues in sql session manager where result outputs 0 rows. This was failing to show the empty resultset contents, which is a regression vs. query editor. It also put unhandled error on the debug console
- Fix#3913 Notebook: words selected in other cells should be unselected on cell change
Note: after fix, now looks as follows. Need to do follow up to get correct grid min height
- Jupyter completion item support was awaiting info before responding. Fix is to check if this is even a notebook cell first, then only await stuff if that's true
