EMI++

• feat: Now the selection of creative mode tabs could be synced from the vanilla creative mode inventory and EMI++;
• feat: Add visual category outline for stack groups (but still buggy and lag :-( );
• refactor: Make creative mode tabs a configurable feature;
• style: Remove unused code;
• fix: Creative mode tabs crash when resize the window;
• fix: Crash during startup since the config directory is not created;

Known issues:

• Frame drop in EMI;