7da8450075
## Description - Add `isHeadless` field to `FrontComponent` entity so front components can run without rendering UI in the command menu - Introduce headless front component mounting logic: `HeadlessFrontComponentMountRoot` at the application root, `useMountHeadlessFrontComponent`, and `useUnmountHeadlessFrontComponent` hooks to mount/unmount headless components - Expand the SDK with new action components (`Action`, `ActionLink`, `ActionOpenSidePanelPage`) and host communication functions (`openSidePanelPage`, `unmountFrontComponent`) - Move `CommandMenuPages` type to twenty-shared so the SDK can reference it for side panel navigation ## Video QA https://github.com/user-attachments/assets/4f9e3bb1-fcd1-42be-b3f4-a97e80c2add2