Add chat hiding mentions follow counts waveform and post fixes

src/modules/posts/dto/update-post.dto.ts

@@ -126,6 +126,14 @@ export class UpdatePostDto {
   @Length(1, 30, { each: true })
   mentionUsernames?: string[];
 
+  @ApiPropertyOptional({ type: [String], description: 'Set mentioned user ids (max 30)' })
+  @IsOptional()
+  @Transform(toStringArray)
+  @IsArray()
+  @ArrayMaxSize(30)
+  @IsMongoId({ each: true })
+  mentionedUserIds?: string[];
+
   @ApiPropertyOptional({ description: 'Post location text' })
   @IsOptional()
   @IsString()