Allow for configuration of Launch Commands

[thin pendant]

The Configuration should be like PrismLauncher/MultiMC

You might think why, here is why

Here is an example: So my OS is Linux and a way to have Minecraft use the dedicated GPU is in Prism Launcher in the configuration to put this command into the wrapper command box

env DRI_PRIME=1

Here is the problem, since the Lunar Client Launcher doesn't allow the configuration of Launch Commands, I can't use that method to have Minecraft use the GPU

For Less Advanced Users:

• You can stuff it in the Version Options Menu
• You can have the player check a checkbox to configure Launch Commands

[crude solar]

i like this