Show Profvis output in an editor tab

[jmcphers]

This change adds a small feature that opens Profvis output in an editor tab in Positron, similar to how Profvis output is treated in RStudio.

Requires posit-dev/ark#988. This is a breaking change in the UI comm protocol, so the merges must be coordinated.

Addresses #3269.

Release Notes

New Features

• Show Profvis (R profiler) output in the editor (profvis::profvis() returns output in browser #3269)

Bug Fixes

• N/A

QA Notes

• The Profvis website has many examples you can try
• Profvis isn't very good about responding to resizes and renders at a fairly fixed size regardless of the editor tab dimensions
• Compare behavior to RStudio

[github-actions]

E2E Tests 🚀
This PR will run tests tagged with: @:critical

^{readme  valid tags}

[jmcphers]

The Python tests are failing because ... the disk is full?

  Moving to /home/runner/work/positron/positron/extensions/positron-python/.nox/test_minimum_reqs-lightning-2-1-4-torch-1-12-1-numpy-1-24-4-pandas-1-5-3/lib/python3.9/site-packages/torchgen/
   from /home/runner/work/positron/positron/extensions/positron-python/.nox/test_minimum_reqs-lightning-2-1-4-torch-1-12-1-numpy-1-24-4-pandas-1-5-3/lib/python3.9/site-packages/~orchgen
ERROR: Could not install packages due to an OSError: [Errno 28] No space left on device

[austin3dickey]

Created an issue for that test: #11092

[DavisVaughan]

Drive by thought, should POSITRON_PREVIEW_PLOTS_IN_VIEWER allow opening in an editor as well?

[jmcphers]

Maybe? It seems a little severe to open up an editor for every new plot, but we could allow folks to do that if they want to.