Holy Roman Empire needs new mechanics

[FizCap]

Hey, I realized the Holy Roman Empire barely exists when you convert. It's Cohesion is so low, all the member states just immediately leave near the start and the Holy Roman Empire becomes empty. I sort of found a solution for this in my 1701 mod, maybe you guys can do something like this as well

https://github.com/FizCap/Victoria3Timeline/commit/aab7b1641b3f53280262370e7b6087e4feebb97b#diff-7cd048fd584a439547f5ae152e01345c991ed38ed004ac5f7346542416728f87