Hi I want to change a single metal dimmer switch to a single standard switch, but the wiring is confusing (see attached photo). There are 3 brown wires, 3 blue wires and 2 yellow and green wires. The wires are connected as follows: 2 brown wires into L1, 1 brown wire into com, all 3 blue wires capped off and not connected, one yellow and green wire connected to the back box and one connected to the back plate of the metal light switch. The new standard light switch has L1, L2 and a Com connection. How do I wire this light switch?