Fix typos

[minho42]

For #

• 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.

[kimadeline]

Hi @minho42 👋 thank you for submitting this pull request! Other files got updated since you submitted it, so could you please address the conflicts between your branch and master (src/client/common/terminal/shellDetector.ts)? Feel free to request a new review when they get resolved, and I'll take a second pass 👀

Thanks!