Changed the name of the setting 'Run Magic Commands'

[DavidKutu]

to 'Run Startup Commands'.

For #6842

• 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.

[codecov-io]

Codecov Report

Merging #7163 into master will decrease coverage by 0.03%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #7163      +/-   ##
==========================================
- Coverage   58.48%   58.44%   -0.04%     
==========================================
  Files         485      485              
  Lines       21446    21446              
  Branches     3462     3462              
==========================================
- Hits        12542    12535       -7     
- Misses       8123     8135      +12     
+ Partials      781      776       -5

Impacted Files	Coverage Δ
src/client/common/types.ts	100% <ø> (ø)	⬆️
...atascience/interactive-window/interactiveWindow.ts	7.38% <0%> (ø)	⬆️
src/client/common/logger.ts	68.55% <0%> (-4.41%)	⬇️

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