271 remove is command menu v2 enabled (#10809)

Closes https://github.com/twentyhq/core-team-issues/issues/271

This PR
- Removes the feature flag IS_COMMAND_MENU_V2_ENABLED
- Removes all old Right drawer components
- Removes the Action menu bar
- Removes unused Copilot page

packages/twenty-server/src/database/typeorm-seeds/core/feature-flags.ts

@@ -65,11 +65,6 @@ export const seedFeatureFlags = async (
         workspaceId: workspaceId,
         value: false,
       },
-      {
-        key: FeatureFlagKey.IsCommandMenuV2Enabled,
-        workspaceId: workspaceId,
-        value: true,
-      },
       {
         key: FeatureFlagKey.IsNewRelationEnabled,
         workspaceId: workspaceId,