Make the application trustworthy for Apple

[c3er]

Currently, the application is not trusted by Apple. Since the macOS version is not tested properly, it is not exactly known yet, which problems this causes except that installation of the DMG package is more difficult (1).

As long as this application is only a hobby project without budget, it is no option to pay Apple any money.

(1) The author tried once to install the DMG downloaded from the internet but didn't take any notes of the process.