Launcher detection can fail for paths with insufficient depth

[diesieben07]

Describe the bug LauncherUtils.getDetectedLauncher can throw NPE if the mods folder does not have sufficient depth.

To Reproduce Steps to reproduce the behavior:

1. Set the game directory to a very shallow path, such as /itlt-test
2. Run the game.
3. Observe the game crashing.

Expected behavior The game does not crash.

Environment details Please fill in what you know, skip any parts you don't know.

• Operating system (e.g. Windows 10): Linux Mint (irrelevant to the issue)
• Java (e.g. AdoptOpenJDK 8 HotSpot): java version 17.0.1 by Microsoft
• Mod version (e.g. 1.16.5-2.0.0): 1.18-2.1.0
• Minecraft version (e.g. 1.16.5): 1.18.2

Logs and additional context

Caused by: java.lang.NullPointerException: Cannot invoke "java.nio.file.Path.resolve(String)" because "theoreticalTechnicPath" is null
    at dk.zlepper.itlt.client.launchers.LauncherUtils.getDetectedLauncher(LauncherUtils.java:27) ~[itlt-1.18-2.1.0.jar%2352!/:1.18-2.1.0]
    at dk.zlepper.itlt.client.ClientModEvents.<clinit>(ClientModEvents.java:39) ~[itlt-1.18-2.1.0.jar%2352!/:1.18-2.1.0]
    ... 14 more

https://gist.github.com/diesieben07/dda64ec8c88dcebc54b19a2adffc2f4d

[PaintNinja]

Thanks for your report, fixed as of v2.1.1 :)