Move is active to fe (#19649)

## Context
Moving isActive filtering to the frontend for page layout tabs and
widgets, hiding inactive entities from the UI while keeping them in
state for future reactivation

Next we will implement deactivated standard tab re-activation during tab
creation (cc @Devessier)
<img width="234" height="303" alt="📋 Menu (Slots)"
src="https://github.com/user-attachments/assets/17a25ac6-55e2-4778-b7f0-e7554ed69704"
/>

packages/twenty-server/src/engine/metadata-modules/view-field-group/dtos/view-field-group.dto.ts

@@ -32,6 +32,9 @@ export class ViewFieldGroupDTO {
   @Field()
   updatedAt: Date;
 
+  @Field(() => Boolean, { nullable: false })
+  isActive: boolean;
+
   @Field(() => Date, { nullable: true })
   deletedAt?: Date | null;
 

packages/twenty-server/src/engine/metadata-modules/view-field-group/services/view-field-group.service.ts

@@ -349,12 +349,7 @@ export class ViewFieldGroupService {
 
     return Object.values(flatViewFieldGroupMaps.byUniversalIdentifier)
       .filter(isDefined)
-      .filter(
-        (group) =>
-          group.viewId === viewId &&
-          group.isActive &&
-          !isDefined(group.deletedAt),
-      )
+      .filter((group) => group.viewId === viewId && !isDefined(group.deletedAt))
       .map(fromFlatViewFieldGroupToViewFieldGroupDto)
       .sort((a, b) => a.position - b.position);
   }