BC-7583 - fix bugs in socket implementation (#5086)

Fixing two bugs that were introduced with the implementation of websocket-communication for boards.
1: When a new card gets created by clicking on the corresponding button, it gets created without an empty text field element.
2: When the user hits enter key while being in a card title, a new text field element should be created at the beginning of the card and the cursor should jump into it.

apps/server/src/modules/board/gateway/board-collaboration.gateway.ts

@@ -169,7 +169,7 @@ export class BoardCollaborationGateway implements OnGatewayDisconnect {
 		const emitter = await this.buildBoardSocketEmitter({ socket, id: data.columnId, action: 'create-card' });
 		const { userId } = this.getCurrentUser(socket);
 		try {
-			const card = await this.columnUc.createCard(userId, data.columnId);
+			const card = await this.columnUc.createCard(userId, data.columnId, data.requiredEmptyElements);
 			const newCard = CardResponseMapper.mapToResponse(card);
 
 			const responsePayload = {

apps/server/src/modules/board/gateway/dto/create-card.message.param.ts

@@ -1,6 +1,17 @@
-import { IsMongoId } from 'class-validator';
+import { ApiPropertyOptional } from '@nestjs/swagger';
+import { IsEnum, IsMongoId, IsOptional } from 'class-validator';
+import { ContentElementType } from '../../domain';
 
 export class CreateCardMessageParams {
 	@IsMongoId()
 	columnId!: string;
+
+	@IsEnum(ContentElementType, { each: true })
+	@IsOptional()
+	@ApiPropertyOptional({
+		required: false,
+		isArray: true,
+		enum: ContentElementType,
+	})
+	requiredEmptyElements?: ContentElementType[];
 }