Fix index issues

drawers/src/main.cpp

@@ -56,13 +56,13 @@ void onI2CReceive(int len) {
         break;
 
       case CMD_LIGHT_INDEX:
-        uint8_t index = Wire.read();
-        turnOnSingleLed(index);
+        uint8_t lightIndex = Wire.read();
+        turnOnSingleLed(lightIndex);
         break;
 
       case CMD_DRAWER_INDEX:
-        uint8_t index = Wire.read();
-        openLock(index);
+        uint8_t drawerIndex = Wire.read();
+        openLock(drawerIndex);
         break;
     }
   }