Assignments to the 'iconEl' variable from inside React Hook useEffect will be lost after each render. To preserve the value over time, store it in a useRef Hook and keep the mutable value in the '.current' property. Otherwise, you can move this variable directly inside useEffect

React Hook useEffect has missing dependencies: 'imageUrl', 'panelId', and 'viewerId'. Either include them or remove the dependency array

React Hook useEffect has missing dependencies: 'addPanelContent' and 'getCollection'. Either include them or remove the dependency array

React Hook useEffect has a missing dependency: 'content'. Either include it or remove the dependency array