Fixes to ds custom editor

[DonJayamanne]

No description provided.

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
0 Code Smells

No Coverage information
No Duplication information

[codecov-io]

Codecov Report

Merging #10257 into ds/custom_editor will not change coverage.
The diff coverage is 0%.

@@                Coverage Diff                @@
##           ds/custom_editor   #10257   +/-   ##
=================================================
  Coverage             60.83%   60.83%           
=================================================
  Files                   567      567           
  Lines                 30586    30586           
  Branches               4363     4363           
=================================================
  Hits                  18608    18608           
  Misses                11031    11031           
  Partials                947      947

Impacted Files	Coverage Δ
src/client/telemetry/index.ts	87.38% <ø> (ø)	⬆️
...ascience/interactive-ipynb/nativeEditorProvider.ts	51.92% <0%> (ø)	⬆️

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[DonJayamanne]

Doesn't fix all tests, but fixes a few of them