Revert "fix: make casing consistent" (#192)

Reverts #190

some commits were missed in that PR

src/commands/lookup/lookup.dto.ts

@@ -1,17 +1,16 @@
-import { capitalCase } from 'change-case';
 import { IsOptional, IsString } from 'class-validator';
-import { ToCasing } from '../../common/decorators/to-casing.js';
+import { ToLowercase } from '../../common/decorators/to-lowercase.js';
 import { SignupDocument } from '../../firebase/models/signup.model.js';
 
 export class LookupInteractionDto
   implements Pick<SignupDocument, 'character' | 'world'>
 {
   @IsString()
-  @ToCasing(capitalCase)
+  @ToLowercase()
   character: string;
 
   @IsString()
   @IsOptional()
-  @ToCasing(capitalCase)
+  @ToLowercase()
   world: string;
 }

src/commands/signup/signup-interaction.dto.ts

@@ -50,7 +50,7 @@ class SignupInteractionDto
   username: string;
 
   @IsString()
-  @ToCasing(capitalCase)
+  @ToLowercase()
   world: string;
 }
 

src/common/decorators/to-casing.ts

@@ -9,4 +9,4 @@ type CaseTransformer = (value: string) => string;
  * @returns
  */
 export const ToCasing = (fn: CaseTransformer) =>
-  Transform(({ value }) => value && fn(value));
+  Transform(({ value }) => fn(value));