chore: fix the next and previous curor

src/modules/email/DTO/email-query.dto.ts

@@ -10,6 +10,16 @@ export class MessageListQueryDto extends PaginationDto {
   @IsOptional()
   @IsEnum(["asc", "desc"], { message: EmailMessage.ORDER_MUST_BE_VALID })
   order?: "asc" | "desc";
+
+  @ApiPropertyOptional({ description: "Next cursor", example: "eyIkb2lkIjoiNWRmMWZkMmQ3NzkyNTExOGI2MDdjNjg0In0" })
+  @IsOptional()
+  @IsString({ message: EmailMessage.NEXT_CURSOR_MUST_BE_STRING })
+  next?: string;
+
+  @ApiPropertyOptional({ description: "Previous cursor", example: "TMIjjIy23ZGM2kk0lIixygWomEknQDWdmzMNIkbNeO0NNjR" })
+  @IsOptional()
+  @IsString({ message: EmailMessage.PREVIOUS_CURSOR_MUST_BE_STRING })
+  previous?: string;
 }
 
 export class SearchMessagesQueryDto extends PaginationDto {