DataViewer added to the webview serviceRegistry.web.ts

[sadasant]

Adding the DataViewer to the list of services loaded in the web.

I'm working on the rest of the changes for #9665 -- I'm really trying to minimize my changes per PR, both for the reviewers ❤️ and because it gets really complex to debug what is broken on the web when I do a bigger quantity of changes.

This PR does not have any negative impact in the web, as far as I could see.
Feedback always appreciated 🙏

[codecov-commenter]

Codecov Report

Merging #10495 (4fbfc65) into main (eb2d5c1) will decrease coverage by 0%.
The diff coverage is 100%.

@@          Coverage Diff           @@
##            main   #10495   +/-   ##
======================================
- Coverage     71%      71%   -1%     
======================================
  Files        467      467           
  Lines      28072    28072           
  Branches    4736     4736           
======================================
- Hits       19937    19935    -2     
- Misses      6249     6251    +2     
  Partials    1886     1886           

Impacted Files	Coverage Δ
...nsion-side/dataviewer/dataViewerMessageListener.ts	100% <ø> (ø)
src/webviews/extension-side/webviewPanelHost.ts	87% <ø> (ø)
...c/webviews/extension-side/dataviewer/dataViewer.ts	58% <100%> (ø)
...ebviews/extension-side/plotting/plotViewer.node.ts	20% <100%> (ø)
...rc/webviews/extension-side/serviceRegistry.node.ts	100% <100%> (ø)
src/kernels/errors/jupyterInvalidKernelError.ts	62% <0%> (-38%)	⬇️
src/platform/common/cancellation.ts	59% <0%> (-4%)	⬇️
src/kernels/jupyter/session/jupyterSession.ts	72% <0%> (-3%)	⬇️
src/platform/api/kernelApi.ts	71% <0%> (-2%)	⬇️
src/kernels/errors/kernelErrorHandler.ts	62% <0%> (-1%)	⬇️
... and 7 more