Option to disable custom RAM warning

[4194304]

Role

Some people need this feature to perform certain tasks in rare cases, so it would be beneficial.

Suggestion

Simply make an option to remove the warning and allow the game to launch with custom RAM arguments.

Benefit

So you can have more freedom with setting JVM RAM.

This suggestion is unique

• [X] I have searched the issue tracker and did not find an issue describing my suggestion, especially not one that has been rejected.

You may use the editor below to elaborate further.

This specifically occurs if you try to use -Xmx=(number). This works perfectly fine on the official launcher so I zero clue why something like this would be hardcoded to prevent people from doing so.

[phit]

See previously https://github.com/MultiMC/Launcher/issues/1723