Add shortcut metadata to data models & CommandMenu (#7977)

Resolves https://github.com/twentyhq/twenty/issues/7503

---------

Co-authored-by: Félix Malfait <felix@twenty.com>

packages/twenty-server/src/engine/metadata-modules/object-metadata/dtos/create-object.input.ts

@@ -51,6 +51,11 @@ export class CreateObjectInput {
   @Field({ nullable: true })
   icon?: string;
 
+  @IsString()
+  @IsOptional()
+  @Field({ nullable: true })
+  shortcut?: string;
+
   @HideField()
   dataSourceId: string;