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/command-menu/components/CommandMenu.tsx

@@ -24,7 +24,6 @@ export const CommandMenu = () => {
 
   const {
     noResults,
-    copilotCommands,
     matchingStandardActionRecordSelectionCommands,
     matchingStandardActionObjectCommands,
     matchingWorkflowRunRecordSelectionCommands,
@@ -47,10 +46,6 @@ export const CommandMenu = () => {
   );
 
   const commandGroups: CommandGroupConfig[] = [
-    {
-      heading: t`Copilot`,
-      items: copilotCommands,
-    },
     {
       heading: t`Record Selection`,
       items: matchingStandardActionRecordSelectionCommands.concat(