Request for new app - MangOverlay

Can you add this app please: ``` # MangOverlay Mang0verlay - MangOverlay is an open source GUI app for managing your MangoHud configuration. It aims to provide as much flexibility within it's settings as possible. SITE: https://https://github.com/loissascha/MangOverlay SOURCE: https://https://github.com/loissascha/MangOverlay | [Applications](https://portable-linux-apps.github.io/apps.html) | [Home](https://portable-linux-apps.github.io) | --- | --- | ```