what is the difference between babel.config.js and vue.config.js and can i combine the 2 files?

I used the Vue cli to create this application. babel.config.js was already in the directory that the cli automatically created but I added the vue.config.js file. What is the difference between these 2 files and can i combine them? it is confusing because they both end with "config.js" so i am thinking that they might have something in common.

This is my babel.config.js

module.exports = {
  presets: [
    '@vue/cli-plugin-babel/preset'
  ]
}

This is my vue.config.js

module.exports = {
    devServer: {
        proxy: {
            '^/users': {
                target: 'http://localhost:5000',
                ws: true,
                changeOrigin: true
            },
            '^/api': {
                target: 'http://localhost:5000',
                ws: true,
                changeOrigin: true
            }
        }
    }
};