To work with the frontend (Vue), it is recommended to use 'watch', which allows you to automatically track changes to project files and builds the frontend after those changes (plusworkflow-web).
The only requirement here is to install node@14. The configuration of watch in intellij is located where the server configuration (choose from the npm dropdown) and looks as follows:
By changing something in cuf-web/plusworkflow-form-web, then watch must be called on the corresponding project.
Watch can also be enabled via a command in the terminal: npm run watch