fix(balance): make NV mutations passive

[Goredell]

Purpose of change (The Why)

to sum up - night vision mutations are currently togglable, while they don't do anything if u on/off them:

• they don't alter colors;
• they keep giving bonus NV'
• closes Night Vision Trait range doesn't add up to Night Vision range via Perception  #5997.

Describe the solution (The How)

Proposition is to make those passive, so those don't confuse players

Also as per @RoyalFox2140: "purely beneficial mutations have no right to be toggled on"

Describe alternatives you've considered

Make toggle effect actually do smth

Testing

Game is builing and starting, mutations are no longer togglable

Checklist

Mandatory

• I wrote the PR title in conventional commit format.
• I ran the code formatter.
• I linked any relevant issues using github keyword syntax like closes #1234 in Summary of the PR so it can be closed automatically.
• I've committed my changes to new branch that isn't main so it won't cause conflict when updating main branch later.

[chaosvolt]

Compiled and load-tested to make sure that NV being passive didn't somehow break it, seems to work.