Fix type errors on Jest functions in VS Code

[0xCmdrKeen]

This fixes a misconfiguration in tsconfig.json which leads to Jest functions such as describe(), expect(), etc. to not be recognized in VS Code.

Before

After

Checklist

• Tested the feature and it's working on a current and clean install.
• Tested the main App features and they are still working on a current and clean install. (Login, Install, Play, Uninstall, Move games, etc.)
• Created / Updated Tests (If necessary)
• Created / Updated documentation (If necessary)

[flavioislima]

Looks good. Thanks for fixing it.