FIX TRUCK PETERBILT 378 V1.0 MOD

FIX FOR TRUCK PETERBILT 378 V1.0 MOD

Fix for truck Peterbilt 378 version 1.0 for Euro Truck Simulator 2 (v1.31.x)
Fix for truck Peterbilt 378 on the game version 1.31.х
Put above the main mode