There are many ways that projects can be structured, and different structures can do well for different projects. Usually, we create a src/ folder, and group our files there by features. Another popular way to structure projects is to group them by routes. For some projects, it might make sense to additionally separate by the kind of code, such as src/api/ and src/components/. However, for our project, we are mainly going to focus on the user interface (UI). As a result, we are going to group our files by features in the src/ folder.
It is a good idea to start with a simple structure at first, and only nest more deeply when you actually need it. Do not spend too much time thinking about the file structure when starting a project, because usually, you do not know up front how files should be grouped.