Add IntelliJ code style settings (no wildcard imports)

[P0nk]

Description

Add IntelliJ code style settings to ensure wildcard imports are disabled for everyone. Remove wildcard imports (import abc.*) everywhere.

Checklist before requesting a review

• [x] I have performed a self-review of my code
• [x] I have tested my changes
• [ ] I have added unit tests that prove my changes work

Screenshots