fix(website): cmdk duplicate values

[brynpttrsn]

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

Resolves duplicate results in cmdk dialog from being highlighted/selected on hover or with arrow navigation.

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

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2 Ignored Deployments

Name	Status	Preview	Comments	Updated (UTC)
discord-js	⬜️ Ignored (Inspect)	Visit Preview		Feb 3, 2024 9:42pm
discord-js-guide	⬜️ Ignored (Inspect)	Visit Preview		Feb 3, 2024 9:42pm

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (a0c83a2) 58.55% compared to head (fed923a) 58.53%.
Report is 5 commits behind head on main.

Files	Patch %	Lines
apps/website/src/components/CmdK.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10100      +/-   ##
==========================================
- Coverage   58.55%   58.53%   -0.03%     
==========================================
  Files         244      244              
  Lines       17281    17267      -14     
  Branches     1248     1244       -4     
==========================================
- Hits        10119    10107      -12     
+ Misses       7117     7115       -2     
  Partials       45       45              

Flag	Coverage Δ
website	0.00% <0.00%> (ø)

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