The Attach To was showing only localhost for SQL, since we overrode the standard kernels from SQL with the ones from Jupyter.
Fix is to save all standard kernels.
Also, added dispose handling for some events I found during debugging and removed unused imports
* engine check when install extension
* gallery install/update and vsix install
* FIX COMMENTS
* Fix the detail not loading issue when version is invalid
* add more comments and adress PR comments
* add install telemetry for install from vsix scenario
* correct the name of the version property for telemetry
* 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.
