docs(SelectMenuBuilder): correct grammatical errors

[CodeGoat-dev]

Please describe the changes this PR makes and why it should be merged:

Corrects gramatical errors in the documentation for various set methods.

Status and versioning classification:

• Code changes have been tested against the Discord API, or there are no code changes
• I know how to update typings and have done so, or typings don't need updating
• This PR only includes non-code changes, like changes to documentation, README, etc.

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2 Ignored Deployments

Name	Status	Preview	Comments	Updated (UTC)
discord-js	⬜️ Ignored (Inspect)	Visit Preview		Jun 2, 2024 3:12pm
discord-js-guide	⬜️ Ignored (Inspect)	Visit Preview		Jun 2, 2024 3:12pm

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.89%. Comparing base (9b07036) to head (ac10364).

Additional details and impacted files

@@            Coverage Diff             @@
##            main   #10309       +/-   ##
==========================================
+ Coverage   0.00%   95.89%   +95.89%     
==========================================
  Files         18       44       +26     
  Lines       3967     3634      -333     
  Branches      18      283      +265     
==========================================
+ Hits           0     3485     +3485     
+ Misses      3967      149     -3818     

Flag	Coverage Δ
brokers	95.89% <100.00%> (+95.89%)	⬆️
builders	95.89% <100.00%> (+95.89%)	⬆️
collection	95.89% <100.00%> (+95.89%)	⬆️
discord.js	95.89% <100.00%> (+95.89%)	⬆️
formatters	95.89% <100.00%> (+95.89%)	⬆️
guide	95.89% <100.00%> (+95.89%)	⬆️
next	95.89% <100.00%> (+95.89%)	⬆️
proxy	95.89% <100.00%> (+95.89%)	⬆️
rest	95.89% <100.00%> (+95.89%)	⬆️
util	95.89% <100.00%> (+95.89%)	⬆️
utilities	95.89% <100.00%> (+95.89%)	⬆️
voice	95.89% <100.00%> (+95.89%)	⬆️
website	95.89% <100.00%> (+95.89%)	⬆️
ws	95.89% <100.00%> (+95.89%)	⬆️

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