refactor: introduce bindThis decorator to bind this automaticaly

packages/backend/src/core/UserMutingService.ts

@@ -5,6 +5,7 @@ import { QueueService } from '@/core/QueueService.js';
 import { GlobalEventService } from '@/core/GlobalEventService.js';
 import type { User } from '@/models/entities/User.js';
 import { DI } from '@/di-symbols.js';
+import { bindThis } from '@/decorators.js';
 
 @Injectable()
 export class UserMutingService {
@@ -21,6 +22,7 @@ export class UserMutingService {
 	) {
 	}
 
+	@bindThis
 	public async mute(user: User, target: User): Promise<void> {
 		await this.mutingsRepository.insert({
 			id: this.idService.genId(),