feat: implement delete note command

[HeadTriXz]

Part of #23.

• Adds the /cases notes delete command.

[codecov]

Codecov Report

Patch coverage: 98.07% and no project coverage change.

Comparison is base (4f9c056) 98.87% compared to head (5567c91) 98.87%.

Additional details and impacted files

@@           Coverage Diff            @@
##             main      #72    +/-   ##
========================================
  Coverage   98.87%   98.87%            
========================================
  Files         119      120     +1     
  Lines       13879    13982   +103     
  Branches     1462     1473    +11     
========================================
+ Hits        13723    13825   +102     
- Misses        156      157     +1     

Flag	Coverage Δ
barry	98.41% <98.07%> (+<0.01%)	⬆️
core	99.92% <ø> (ø)
logger	100.00% <ø> (ø)

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

Files Changed	Coverage Δ
...moderation/commands/chatinput/cases/notes/index.ts	0.00% <0.00%> (ø)
...ion/commands/chatinput/cases/notes/delete/index.ts	100.00% <100.00%> (ø)

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