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-front/src/modules/ui/layout/page/components/PageAddButton.tsx

@@ -1,18 +1,12 @@
 import { useHasObjectReadOnlyPermission } from '@/settings/roles/hooks/useHasObjectReadOnlyPermission';
-import { useIsFeatureEnabled } from '@/workspace/hooks/useIsFeatureEnabled';
 import { useLingui } from '@lingui/react/macro';
-import { Button, IconButton, IconPlus, useIsMobile } from 'twenty-ui';
-import { FeatureFlagKey } from '~/generated/graphql';
+import { Button, IconPlus, useIsMobile } from 'twenty-ui';
 
 type PageAddButtonProps = {
   onClick?: () => void;
 };
 
 export const PageAddButton = ({ onClick }: PageAddButtonProps) => {
-  const isCommandMenuV2Enabled = useIsFeatureEnabled(
-    FeatureFlagKey.IsCommandMenuV2Enabled,
-  );
-
   const hasObjectReadOnlyPermission = useHasObjectReadOnlyPermission();
 
   const isMobile = useIsMobile();
@@ -24,29 +18,15 @@ export const PageAddButton = ({ onClick }: PageAddButtonProps) => {
   }
 
   return (
-    <>
-      {isCommandMenuV2Enabled ? (
-        <Button
-          Icon={IconPlus}
-          dataTestId="add-button"
-          size={isMobile ? 'medium' : 'small'}
-          variant="secondary"
-          accent="default"
-          title={isMobile ? '' : t`New record`}
-          onClick={onClick}
-          ariaLabel={t`New record`}
-        />
-      ) : (
-        <IconButton
-          Icon={IconPlus}
-          dataTestId="add-button"
-          size="medium"
-          variant="secondary"
-          accent="default"
-          ariaLabel={t`Add`}
-          onClick={onClick}
-        />
-      )}
-    </>
+    <Button
+      Icon={IconPlus}
+      dataTestId="add-button"
+      size={isMobile ? 'medium' : 'small'}
+      variant="secondary"
+      accent="default"
+      title={isMobile ? '' : t`New record`}
+      onClick={onClick}
+      ariaLabel={t`New record`}
+    />
   );
 };