push 'key' to init() in voice lfos

[SylvestreDewa]

Bug Description:
message: "attempt to perform arithmetic on field 'key' (a nil value)"
when trying to use key in init() in Formula LFO
For exemple, this won't work:
function init(state)
state.note = state.key % 12
return state
end

Surge XT Version
1.3.4 and Nightly Nov 29 2024

• Version:
• Plugin Type: [VST2, VST3, AU]
• Bitness: [32-bit or 64-bit]

Computer Information (please complete the following!):

• OS: [Windows 10]
• Host: [Reaper]