Hide workflows + remove feature flag from entities (#9768)

From now on workflow entities and views will be seed for every new
workspace. What will prevent user to see those is the feature flag used
in frontend. It will prevent workflow objects to be stored in the recoil
state.

Without feature flag, workflows will:
- remain invisible in metadata
- not be accessible through views or show page
- remain invisible on side menu

packages/twenty-server/src/engine/workspace-manager/workspace-manager.service.ts

@@ -1,6 +1,5 @@
 import { Injectable } from '@nestjs/common';
 
-import { FeatureFlagKey } from 'src/engine/core-modules/feature-flag/enums/feature-flag-key.enum';
 import { FeatureFlagService } from 'src/engine/core-modules/feature-flag/services/feature-flag.service';
 import { DataSourceEntity } from 'src/engine/metadata-modules/data-source/data-source.entity';
 import { DataSourceService } from 'src/engine/metadata-modules/data-source/data-source.service';
@@ -104,16 +103,10 @@ export class WorkspaceManagerService {
     const createdObjectMetadata =
       await this.objectMetadataService.findManyWithinWorkspace(workspaceId);
 
-    const isWorkflowEnabled = await this.featureFlagService.isFeatureEnabled(
-      FeatureFlagKey.IsWorkflowEnabled,
-      workspaceId,
-    );
-
     await standardObjectsPrefillData(
       workspaceDataSource,
       dataSourceMetadata.schema,
       createdObjectMetadata,
-      isWorkflowEnabled,
     );
   }
 
@@ -140,16 +133,10 @@ export class WorkspaceManagerService {
     const createdObjectMetadata =
       await this.objectMetadataService.findManyWithinWorkspace(workspaceId);
 
-    const isWorkflowEnabled = await this.featureFlagService.isFeatureEnabled(
-      FeatureFlagKey.IsWorkflowEnabled,
-      workspaceId,
-    );
-
     await seedWorkspaceWithDemoData(
       workspaceDataSource,
       dataSourceMetadata.schema,
       createdObjectMetadata,
-      isWorkflowEnabled,
     );
 
     await this.seederService.seedCustomObjects(