When automatically opening the Notebook Editor, non file schemes

[DonJayamanne]

For #7905

• Pull request represents a single change (i.e. not fixing disparate/unrelated things in a single PR)
• Title summarizes what is changing
• Has a news entry file (remember to thank yourself!)
• Appropriate comments and documentation strings in the code
• [n/a] Has sufficient logging.
• [n/a] Has telemetry for enhancements.
• Unit tests & system/integration tests are added/updated
• [n/a] Test plan is updated as appropriate
• [n/a] package-lock.json has been regenerated by running npm install (if dependencies have changed)
• [n/a] The wiki is updated with any design decisions/details.

[codecov-io]

Codecov Report

Merging #7921 into master will increase coverage by 0.31%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #7921      +/-   ##
==========================================
+ Coverage   58.94%   59.26%   +0.31%     
==========================================
  Files         498      499       +1     
  Lines       22299    22400     +101     
  Branches     3576     3593      +17     
==========================================
+ Hits        13144    13275     +131     
+ Misses       8333     8299      -34     
- Partials      822      826       +4

Impacted Files	Coverage Δ
...ascience/interactive-ipynb/nativeEditorProvider.ts	58.51% <100%> (ø)
...debugger/extension/configuration/resolvers/base.ts	88.4% <0%> (-2.9%)	⬇️
src/client/datascience/constants.ts	100% <0%> (ø)	⬆️
...ience/interactive-common/interactiveWindowTypes.ts	100% <0%> (ø)	⬆️
src/datascience-ui/interactive-common/mainState.ts	46% <0%> (+1.1%)	⬆️
src/client/language/characters.ts	33.33% <0%> (+2.56%)	⬆️
src/client/common/utils/version.ts	81.48% <0%> (+3.7%)	⬆️
src/client/providers/providerUtilities.ts	88.88% <0%> (+5.55%)	⬆️
src/client/datascience/cellFactory.ts	89.65% <0%> (+13.79%)	⬆️
... and 6 more

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[IanMatthewHuff]

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[rchiodo]

[IanMatthewHuff]