Remove/revamp the Bridge Alert Button and rework Stationwide Alert

[Frank_Stein]

I don't think there should be limits on progressing from one level to the other. There will be times when it will go from green to red, like with nukies. I think the balance should be the extra privileges the crew gets.

We could also include things like contraband and securitron threat assessment as part of what gets relaxed at higher levels