Allow Pokemon downscaling after rarity upscale

[Levonestral]

Description

This allows you to choose any number of Pokemon and override their scaling to be "normal" instead of their assigned rarity scale.

Motivation and Context

Certain rarities of Pokemon result in a larger scaled display on the map. Although most of the time this is very helpful, there are some Pokemon that users may still not want to have larger (For example, Wobuffet for my users was not wanted to see larger scaled due to rarity).

RocketMap already allows the override the default size of 2 to make them larger, so this PR simply does the opposite and allows you to override the rarity size and force them back to 2 (normal).

How Has This Been Tested?

Smaller map. 5 instances, 300 accounts.

Screenshots (if appropriate):

None

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[sebastienvercammen]

Need to update this review. 👀

Need to update it.