Drag & drop has also been added, when you click on a color next to a column, a color picker opens with which you can change the color. I have some ideas for further implementation, ultimately someday I would like to make this a fullstack application.
From the requirements that were in the challang I additionally added the following:
I added sorting of job elements, if in the json file another job offer would get the status "featured" and, or "new" it will be sorted so that it is generated first. This is not done "rigidly"
I took care of error handling, used modern methods such as generating a spinner when data is retrieved
Using modern libraries, I added subtle animations on individual components to make the whole application behave more "smoothly."