fix(lockdown): ensure proper permission checks

[favna]

Ref for inspiration: Naval-Base/yuudachi#1012

Yuu's post-merge files: https://github.com/Naval-Base/yuudachi/tree/main/src/functions/lockdowns and https://github.com/Naval-Base/yuudachi/blob/main/src/commands/moderation/lockdown.ts

[codecov]

Codecov Report

Merging #2097 (1d030cb) into main (54a9557) will increase coverage by 0.12%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #2097      +/-   ##
==========================================
+ Coverage   91.77%   91.89%   +0.12%     
==========================================
  Files         125      125              
  Lines        5736     5735       -1     
  Branches      365      368       +3     
==========================================
+ Hits         5264     5270       +6     
+ Misses        470      463       -7     
  Partials        2        2              

Impacted Files	Coverage Δ
.../lib/i18n/languageKeys/keys/commands/Moderation.ts	100.00% <100.00%> (ø)
.../lib/i18n/languageKeys/keys/commands/Developers.ts	100.00% <0.00%> (ø)
src/lib/util/formatters.ts	92.56% <0.00%> (+1.65%)	⬆️
src/lib/util/constants.ts	100.00% <0.00%> (+3.33%)	⬆️

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[kyranet]

Superseded by #2593