The folder created by Monaca for all JS/CSS components used in the project.
The folder www/components/ is for all JS/CSS components used in the project. However, the following two files exist in the folder by default regardless of what kinds of components you have added to your project:
A style sheet file used by Monaca to load CSS libraries
The loader.js and loader.css files must be read from an HTML file.
Each component will create its own folder in the (one level below) www/components/ folder.loader.js file also loads cordova.js file.
If you import a Cordova plugin using a ZIP file, it will be stored inside this folder. However, if you import the plugin using package URL/Plugin ID, the plugin file will be downloaded during build.
The config.xml is a file that controls various settings of Cordova. Please refer to the following documentations regarding how to edit the config.xml file for Android and iOS: