Stop Minimizing on Focus Loss

Added Features

• Lets you enable or disable minimization prevention independently of fullscreen mode.
• Provides native and borderless fullscreen modes.
• Defaults to borderless on Windows and native fullscreen with auto-iconification disabled elsewhere.
• Follows the monitor containing most of the Minecraft window.
• Stores two portable settings in config/stop-minimizing-on-focus-loss.properties.
• Adds a Fullscreen settings entry to Minecraft's main Options screen on supported GUI targets.