Ensure event handler is bound to the right context

[DonJayamanne]

For #9539

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

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

No Coverage information
0.0% Duplication

[codecov-io]

Codecov Report

Merging #9705 into master will increase coverage by 0.02%.
The diff coverage is 0%.

@@            Coverage Diff            @@
##           master   #9705      +/-   ##
=========================================
+ Coverage   60.77%   60.8%   +0.02%     
=========================================
  Files         551     551              
  Lines       29655   29661       +6     
  Branches     4483    4485       +2     
=========================================
+ Hits        18024   18036      +12     
+ Misses      10623   10617       -6     
  Partials     1008    1008

Impacted Files	Coverage Δ
.../datascience/interactive-common/interactiveBase.ts	19.05% <0%> (ø)	⬆️
src/client/common/utils/platform.ts	70.58% <0%> (-5.89%)	⬇️
...ent/common/application/webPanels/webPanelServer.ts	74.64% <0%> (-3.3%)	⬇️
src/client/common/platform/types.ts	100% <0%> (ø)	⬆️
...terpreter/locators/services/condaEnvFileService.ts	86.27% <0%> (ø)	⬆️
src/client/interpreter/serviceRegistry.ts	100% <0%> (ø)	⬆️
src/client/constants.ts	80% <0%> (ø)	⬆️
...rc/datascience-ui/interactive-common/transforms.ts
src/client/common/platform/fs-temp.ts	100% <0%> (ø)
src/client/common/platform/fileSystem.ts	27.09% <0%> (+0.22%)	⬆️
... and 1 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update cc145ac...dbe9a73. Read the comment docs.