feat: view groups (#7176)

Fix #4244 and #4356

This pull request introduces the new "view groups" capability, enabling
the reordering, hiding, and showing of columns in Kanban mode. The core
enhancement includes the addition of a new entity named `ViewGroup`,
which manages column behaviors and interactions.

#### Key Changes:
1. **ViewGroup Entity**:  
The newly added `ViewGroup` entity is responsible for handling the
organization and state of columns.
This includes:
   - The ability to reorder columns.
- The option to hide or show specific columns based on user preferences.

#### Conclusion:
This PR adds a significant new feature that enhances the flexibility of
Kanban views through the `ViewGroup` entity.
We'll later add the view group logic to table view too.

---------

Co-authored-by: Lucas Bordeau <bordeau.lucas@gmail.com>

packages/twenty-front/src/modules/object-metadata/types/CoreObjectNameSingular.ts

@@ -25,6 +25,7 @@ export enum CoreObjectNameSingular {
   ViewField = 'viewField',
   ViewFilter = 'viewFilter',
   ViewSort = 'viewSort',
+  ViewGroup = 'viewGroup',
   Webhook = 'webhook',
   WorkspaceMember = 'workspaceMember',
   MessageThreadSubscriber = 'messageThreadSubscriber',