bun-{list, pm ls}: add pages

[msaf9]

Checklist

• The page(s) are in the correct platform directories: common, linux, osx, windows, sunos, android, etc.
• The page description(s) have links to documentation or a homepage.
• The page(s) follow the content guidelines.
• The page(s) follow the style guide.
• The PR contains at most 5 new pages.
• The PR is authored by me, or has been human-reviewed if it was created with AI or machine translation software.
• The PR title conforms to the recommended templates.
• Version of the command being documented (if known): 1.3.3
• Reference issue: #

[msaf9]

Still unsure whether to use See also or alias for these two pages.

[ivanbaluta]

Still unsure whether to use See also or alias for these two pages.

As I understand, there is no separate documentation page for bun list; it is only mentioned in the context of bun pm ls.
In that case, an alias page is the correct approach. Using See also implies that the commands are related but distinct.