docs: Update Light Toy property descriptions

[Trevlouw]

Description

Describe the changes
Changed the descriptions of the LightShape and LightType properties in Exiled.API.Features.Toys.Light to better represent what they actually do (rather than copy pasted code that wasn't updated when 14.0 came out)

What is the current behavior? (You can also link to an open issue here)
The current descriptions are misleading

What is the new behavior? (if this is a feature change)

Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)
No, just changes the descriptions of the properties to help dev's who don't know how to mess with Light's

Other information:

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)
• Documentations

Submission checklist

• I have checked the project can be compiled
• I have tested my changes and it worked as expected

Patches (if there are any changes related to Harmony patches)

• I have checked no IL patching errors in the console

Other

• Still requires more testing