feat(*): allow to select auth providers + add multiworkspace with subdomain management (#8656)

## Summary
Add support for multi-workspace feature and adjust configurations and
states accordingly.
- Introduced new state isMultiWorkspaceEnabledState.
- Updated ClientConfigProviderEffect component to handle
multi-workspace.
- Modified GraphQL schema and queries to include multi-workspace related
configurations.
- Adjusted server environment variables and their respective
documentation to support multi-workspace toggle.
- Updated server-side logic to handle new multi-workspace configurations
and conditions.

packages/twenty-front/src/modules/auth/states/workspaces.ts

@@ -2,7 +2,10 @@ import { createState } from 'twenty-ui';
 
 import { Workspace } from '~/generated/graphql';
 
-export type Workspaces = Pick<Workspace, 'id' | 'logo' | 'displayName'>;
+export type Workspaces = Pick<
+  Workspace,
+  'id' | 'logo' | 'displayName' | 'subdomain'
+>;
 
 export const workspacesState = createState<Workspaces[] | null>({
   key: 'workspacesState',