Release 5

All source code is translated into English.

Also among other changes:

• Added ability to disallow users to change language (forced to use the Universe language). This can come in handy for retroservers that want to use only one native language.
• Fixed a number of bugs

From now on, all releases will be in English only.

Thank you to all the contributors and users from Discord server: https://discord.gg/xpCV3McAj2 ❤️