Gameserver autoupdater

[JacksonTheMaster]

Gameserver AutoUpdater & /setup rework

This PR adds a config option to enable polling steam for a gameserver update every 5 minutes. If an update is found, the server stops within 60 seconds, then the update is applied and the server gets restarted.
The setup process got reworked, finally simplifying the SaveInfo (MyMarsMap Mars2) setup to be more user friendly.

Further improvements

• Reordered the config.json file order to be more useful
• Fixed update from discord command handling
• Reordered structure of config.json to be more logical
• Updated Discord control panel to use embeds
• Improved discord control panel
• Added update server to Discord control panel
• Improved the way SSUI handles restartes and waiting for the server to stop
• Added discordgo license and mention
• Further minor improvements and additions
• FIxed various bugs with 2boxform (setup, login, changeuser page)
• Fixed changeuser page showing "Something went wrong"
• Improved Localization
• General small improvements and small fixes
• Added cli flags:
  -BackendEndpointPort string

Parameter	Expects	Info	Alias
CreateSSUILogFile	none	Create log files for SSUI	-lf
GameBranch	string	Override the game branch (e.g., beta)	-b
IsDebugMode	none	Enable debug mode	-debug
LogLevel	int	Override the log level (e.g., 10)	-ll
RecoveryPassword	string	Adds a 'recovery' user (expects password as argument)	-r
BackendEndpointPort	int	Override the backend endpoint port (e.g., 8080)	-p