feat: autocomplete options

[suneettipirneni]

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

Closes #50

discord-api-types will need a new release in order for the return types to be typed.

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

[codecov-commenter]

Codecov Report

Merging #52 (063d35d) into main (65467ec) will not change coverage. The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main       #52   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           21        25    +4     
  Lines          264       274   +10     
  Branches        33        33           
=========================================
+ Hits           264       274   +10     

Impacted Files	Coverage Δ
...s/slashCommands/mixins/CommandOptionWithChoices.ts	100.00% <ø> (ø)
...nteractions/slashCommands/mixins/CommandOptions.ts	100.00% <100.00%> (ø)
...hCommands/mixins/CommandOptionsWithAutocomplete.ts	100.00% <100.00%> (ø)
.../interactions/slashCommands/options/autoInteger.ts	100.00% <100.00%> (ø)
...c/interactions/slashCommands/options/autoNumber.ts	100.00% <100.00%> (ø)
...c/interactions/slashCommands/options/autoString.ts	100.00% <100.00%> (ø)

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[suneettipirneni]

Closing in favor of @Khasms upcoming PR