DPVP: Multiple supply signals result in misdetecting as timed drop(s)

[HunterZ]

Reported by .a1ive. on Discord: https://discord.com/channels/@me/1371202799961903164/1371203062257029291

Dynamic PVP issue here. If you throw more than 1 supply drop in area - you get pvp zone no matter if that if false in config

Look into tweaking detection to err on the side of counting air drops as originating from supply signals.