Extend description of dataScience.runStartupCommands

[janosh]

For #6842 (following #7163) (needs further discussion)

• 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.

python.dataScience.runStartupCommands is only triggered when launching a fresh interactive window. It should, in my opinion, also trigger when restarting the kernel. Users will expect that restarting the kernel results in a clean but identical state to when they first launched the interactive window. Currently, this is not the case. If maintainers agree, I'm happy to add a fix to this PR.

[codecov-io]

Codecov Report

Merging #7216 into master will decrease coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master   #7216      +/-   ##
=========================================
- Coverage   58.55%   58.5%   -0.06%     
=========================================
  Files         486     486              
  Lines       21460   21460              
  Branches     3463    3463              
=========================================
- Hits        12566   12555      -11     
- Misses       8116    8129      +13     
+ Partials      778     776       -2

Impacted Files	Coverage Δ
src/client/common/logger.ts	68.55% <0%> (-6.92%)	⬇️

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[rchiodo]

@janosh, I believe we're about to change this such that it will rerun the commands on a kernel restart as well. That's in this PR here:
#7222

[rchiodo]

Yeah it's on line 200 or so of the new jupyterNotebook.ts file. notebook.initialize gets called every time we restart.

[janosh]

Very cool! #7222 is a hell of a PR! You guys are on fire. 😄