feat: add soundboard

[sdanialraza]

Please describe the changes this PR makes and why it should be merged:
Adds soundboard for mainlib

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 changes the library's interface (methods or parameters added)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 39.11%. Comparing base (4d19426) to head (02d2783).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10590      +/-   ##
==========================================
- Coverage   39.66%   39.11%   -0.55%     
==========================================
  Files         249      244       -5     
  Lines       15206    14796     -410     
  Branches     1456     1414      -42     
==========================================
- Hits         6031     5788     -243     
+ Misses       9163     8996     -167     
  Partials       12       12              

Flag	Coverage Δ
proxy	64.63% <ø> (∅)
rest	87.37% <100.00%> (∅)
ws	34.64% <ø> (ø)

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[Qjuh]

Might be worth to add a get soundboardSound() to

discord.js/packages/discord.js/src/structures/VoiceChannelEffect.js

Line 50 in b6fda78

this.soundId = data.sound_id ?? null;

which can be null if that sound_id is not found in the this.guild.soundboardSounds.cache.