Add workspace favorites behind feature flag (#6904)

- make member nullable on favorites
- add potential relation with view entity
- add a new type of favorite list in front : workspace favorite
- build a new component for retrieving workspace favorite to display +
refacto the existing one

Bonus:
- removing activities seed since this is deprecated

packages/twenty-server/src/engine/workspace-manager/standard-objects-prefill-data/view.ts

@@ -4,7 +4,6 @@ import { v4 } from 'uuid';
 import { FeatureFlagKey } from 'src/engine/core-modules/feature-flag/enums/feature-flag-key.enum';
 import { FeatureFlagEntity } from 'src/engine/core-modules/feature-flag/feature-flag.entity';
 import { ObjectMetadataEntity } from 'src/engine/metadata-modules/object-metadata/object-metadata.entity';
-import { activitiesAllView } from 'src/engine/workspace-manager/standard-objects-prefill-data/views/activities-all.view';
 import { companiesAllView } from 'src/engine/workspace-manager/standard-objects-prefill-data/views/companies-all.view';
 import { notesAllView } from 'src/engine/workspace-manager/standard-objects-prefill-data/views/notes-all.view';
 import { opportunitiesAllView } from 'src/engine/workspace-manager/standard-objects-prefill-data/views/opportunities-all.view';
@@ -30,7 +29,6 @@ export const viewPrefillData = async (
     await peopleAllView(objectMetadataMap),
     await opportunitiesAllView(objectMetadataMap),
     await opportunitiesByStageView(objectMetadataMap),
-    await activitiesAllView(objectMetadataMap),
     await notesAllView(objectMetadataMap),
     await tasksAllView(objectMetadataMap),
     await tasksByStatusView(objectMetadataMap),
@@ -128,4 +126,6 @@ export const viewPrefillData = async (
         .execute();
     }
   }
+
+  return viewDefinitionsWithId;
 };