v0.4

Final iP release of Fozza.

Changes in v0.4:

• Reconfigured JavaFX dependencies to strictly follow SE-EDU tutorial setup
• Removed mixed JavaFX plugin configuration
• Ensured compatibility across Windows, macOS, and Linux
• Rebuilt fat JAR using Shadow plugin
• Verified launch via java -jar on multiple environments

This release resolves the previous Linux smoke test failure.