To create a client component, put it in ClientUI\app\components. To override a component in plugins, reference the original file (e.g. ClientUI\app\plugins\core\components\MiniMenu.tsx) and create the override in ClientUI\app\overrides\{{path from core forward}} (e.g. ClientUI\app\overrides\core\components\MiniMenu.tsx).To make overriding easier, make sure imports in the CORE files are not relative (e.g. NOT "./some/path", but instead "@core/some/path").The file that actually processes overrides for us is ClientUI\vite.config.ts.