feat(balance): Update Dodge modifier calculations, books train you more

[RoyalFox2140]

Checklist

Required

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

Purpose of change

Base dodge is incredibly high without training, with training you become impossible to hit. We don't want to stop dodge builds from existing, but the earlygame math without mutations is too stacked from dex

Describe the solution

Every 2 points in dex would raise dodge modifier by 1. This sets it to every 4 points. This means at 8 dexterity you will have 2 modifier without training instead of 4, and at level 10 you wall have 12 modifier. At level 10 you ensure melee 7 enemies only can hit at a 16% chance. This is also before we calculate mutations or CBMs. At level 16 Dexterity it's back to 4 modifier and 14 at level 10.

In an effort to make it easier to train dodge the books now go to 2, 3, and 5. Dodge only trains on success, this is basically mandatory until someone sets it to train on failure.

Describe alternatives you've considered

N/A

Testing

I've done a fair bit of math on it, but you can too. Matching enemy melee skill is a 50% dodge chance. With the dodge 2 magazine you can gain 4 modifier and most enemies are between 3 and 5 earlygame.

The dodge tests will probably break. They have to be ran.

Additional context

Someone is going to be mad with me, but I think the dodge books is quality of life enough to make up for this.

[Coolthulhu]

Looks like you also need to update the tests - balance tests assume dex/2 bonus and thus fail.

[RoyalFox2140]

Let me see those tests...

[scarf005]

could you please be explicit on whether it's a buff or nerf next time? "update" can mean both