Improve Minecraft directory detection for different environments.

[marchermans]

Add support for a manual environment variable based override.
Add support for the official flatpak on linux.

[neoforged-pr-publishing]

• Publish PR to GitHub Packages

Last commit published: 16469d363cf3693caa9fb6d87f0b19eb2fb7e5ff - version: 3.0.45-pr-51-feature-better-mc-dir-detection

PR Publishing

The artifacts published by this PR:

• 📦 net.neoforged:legacyinstaller:3.0.45-pr-51-feature-better-mc-dir-detection

Repository Declaration

In order to use the artifacts published by the PR, add the following repository to your buildscript:

repositories {
    maven {
        name = "Maven for PR #51" // https://github.com/neoforged/LegacyInstaller/pull/51
        url = uri("https://prmaven.neoforged.net/LegacyInstaller/pr51")
        content {
            includeModule("net.neoforged", "legacyinstaller")
        }
    }
}

[neoforged-releases]

🚀 This PR has been released as LegacyInstaller version 3.0.41.