refactor(website): remove unneccessary addPackageToModel function

[Qjuh]

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

• Removed the addPackageToModel function as it now was a one-liner that can be done directly where needed.
• fixed event links from search index

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

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

2 Ignored Deployments

Name	Status	Preview	Comments	Updated (UTC)
discord-js	⬜️ Ignored (Inspect)	Visit Preview		Nov 18, 2023 2:15pm
discord-js-guide	⬜️ Ignored (Inspect)	Visit Preview		Nov 18, 2023 2:15pm

[codecov]

Codecov Report

Attention: 10 lines in your changes are missing coverage. Please review.

Comparison is base (802ec63) 58.94% compared to head (ae378bf) 58.96%.

Files	Patch %	Lines
.../docs/packages/[package]/[version]/[item]/page.tsx	0.00%	5 Missing ⚠️
...c/app/docs/packages/[package]/[version]/layout.tsx	0.00%	3 Missing ⚠️
apps/website/src/util/fetchMember.ts	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9983      +/-   ##
==========================================
+ Coverage   58.94%   58.96%   +0.02%     
==========================================
  Files         241      240       -1     
  Lines       16988    16982       -6     
  Branches     1241     1240       -1     
==========================================
  Hits        10014    10014              
+ Misses       6929     6923       -6     
  Partials       45       45              

Flag	Coverage Δ
utilities	100.00% <ø> (ø)
website	0.00% <0.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.