When working with JavaScript, importing a file means that the file is treated as a module and can have exports such as variables, functions, classes, or objects for use in your application.
For instance, using the line import bgImg from '../public/images/Error/BG.png'; imports an image file from a specific path and assigns it to the variable bgImg.
The .src property in this context holds the URL of the imported image, typically used to set the src attribute of an img element in HTML to display the image on a webpage. Here, it's utilized to set the backgroundImage property of the Layout component, which accepts a string containing the image file's URL.
Therefore, accessing bgImg.src retrieves the path of the imported image file, which is then used as the value for the backgroundImage property to display the image as the layout component's background.