Ionic Capacitor no capacitor.config.json but instead capacitor.config.ts

I created an Angular/Ionic project with capacitor. Now I wanted to make changes in my capacitor.config.json but this file is missing? Instead there is the capacitor.config.ts?! I need the JSON File because otherwise a plugin doesnt work! Which version of Ionic/Angular/Capacitor should I use for this? Here are pictures of my directory and my package.json:Directory and Files

package.json file