Fix change directory command for native editor export

[IanMatthewHuff]

For #7567

• 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
• Has sufficient logging.
• Has telemetry for enhancements.
• Unit tests & system/integration tests are added/updated
• Test plan is updated as appropriate
• package-lock.json has been regenerated by running npm install (if dependencies have changed)
• The wiki is updated with any design decisions/details.

[rchiodo]

[codecov-io]

Codecov Report

Merging #8269 into master will increase coverage by 0.07%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master    #8269      +/-   ##
==========================================
+ Coverage   59.04%   59.11%   +0.07%     
==========================================
  Files         505      504       -1     
  Lines       23109    23152      +43     
  Branches     3736     3769      +33     
==========================================
+ Hits        13645    13687      +42     
+ Misses       8583     8576       -7     
- Partials      881      889       +8

Impacted Files	Coverage Δ
src/client/datascience/types.ts	100% <ø> (ø)	⬆️
src/client/datascience/jupyter/jupyterImporter.ts	18.42% <0%> (ø)	⬆️
...ient/datascience/interactive-ipynb/nativeEditor.ts	58.19% <100%> (+4.34%)	⬆️
src/datascience-ui/react-common/constants.ts	0% <0%> (ø)	⬆️
src/client/datascience/statusProvider.ts
src/client/datascience/jupyter/jupyterDebugger.ts	10.11% <0%> (+0.05%)	⬆️
src/client/datascience/webViewHost.ts	48.18% <0%> (+0.9%)	⬆️
.../datascience/interactive-common/interactiveBase.ts	24.33% <0%> (+4.23%)	⬆️

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