fix: replace ow with zod

[Khasms]

Please describe the changes this PR makes and why it should be merged:
Replaces ow with zod.

Status and versioning classification:

• Code changes have been tested, or there are no code changes
• I know how to update typings and have done so, or typings don't need updating
• This PR includes breaking changes (methods removed or renamed, parameters moved or removed)

[codecov-commenter]

Codecov Report

Merging #58 (1c0b8c7) into main (580a955) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main       #58   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           21        21           
  Lines          264       264           
  Branches        33        33           
=========================================
  Hits           264       264           

Impacted Files	Coverage Δ
src/interactions/contextMenuCommands/Assertions.ts	100.00% <100.00%> (ø)
src/interactions/slashCommands/Assertions.ts	100.00% <100.00%> (ø)
...s/slashCommands/mixins/CommandChannelOptionBase.ts	100.00% <100.00%> (ø)
...ractions/slashCommands/mixins/CommandOptionBase.ts	100.00% <100.00%> (ø)
...s/slashCommands/mixins/CommandOptionWithChoices.ts	100.00% <100.00%> (ø)
src/messages/embed/Assertions.ts	100.00% <100.00%> (ø)
src/messages/embed/Embed.ts	100.00% <100.00%> (ø)

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[leonardssh]

Definitely zod is the best ♥ first validation scheme in my opinion. Also see: https://github.com/colinhacks/zod#comparison

[vladfrangu]

Just like with #56, I'd love to know

• What do errors look like
• Does zod report all validation errors or just the first one

[Khasms]

Just like with #56, I'd love to know

• What do errors look like
• Does zod report all validation errors or just the first one

The answers to both of those are in my comment on #56, #56 (comment)

Stale

[kyranet]

Just this one, everything else looks good to me