When the "Valves" modal is opened from the "Integrations" menu, a click outside the modal would incorrectly close the integrations menu first. This was because the dropdown's outside click handler was still active.
This commit fixes the issue by introducing a `closeOnOutsideClick` prop to the `Dropdown` component. This prop is controlled by the `MessageInput` component, which now disables the outside click handler on the integrations menu when the valves modal is open, and re-enables it when the modal is closed.