fix: Ghost emoji correction in message sending

Corrects an issue where a ghost emoji was being displayed in message sending. The 'Mentions' class was removed and its properties were moved to the 'Options' class. The 'everyOne' and 'mentioned' properties were replaced by 'mentionsEveryOne' and 'mentioned', respectively. This change improves the code readability and maintainability.

The affected files are:
- src/api/dto/sendMessage.dto.ts
- src/api/services/channels/whatsapp.baileys.service.ts
- src/api/services/channels/whatsapp.business.service.ts

src/api/dto/sendMessage.dto.ts

@@ -5,18 +5,14 @@ export class Quoted {
   message: proto.IMessage;
 }
 
-export class Mentions {
-  everyOne?: boolean;
-  mentioned?: string[];
-}
-
 export class Options {
   delay?: number;
   presence?: WAPresence;
   quoted?: Quoted;
-  mentions?: Mentions;
   linkPreview?: boolean;
   encoding?: boolean;
+  mentionsEveryOne?: boolean;
+  mentioned?: string[];
 }
 
 export class MediaMessage {
@@ -44,7 +40,7 @@ export class Metadata {
   delay?: number;
   quoted?: Quoted;
   linkPreview?: boolean;
-  everyOne?: boolean;
+  mentionsEveryOne?: boolean;
   mentioned?: string[];
   encoding?: boolean;
 }