Bug Fixes Close "Add downloaders" dialog on add

ReVanced Manager is an application that uses ReVanced Patcher to patch Android apps. Some of the features ReVanced Manager provides are: 💉 Patch apps: Apply any patch of your choice to Android apps 📱 Portable: ReVanced Patcher that fits in your pocket 🤗 Simple UI: Quickly understand the ins and outs of ReVanced Manager 🛠️ Customization: Configurable API, custom sources, language, signing keystore, theme and more