fix: body-length can't be exceeded anymore

[AlbertUnruh]

What type of pull request is this?

• Non-breaking code change
• Breaking code change
• Documentation change/addition
• Tests change
• CI change
• Other: [Replace with a description]

Description

Fix a bug where a body-length near 2000 can cause errors because formatting increases its length

Changes

Move formatting of body up so it's length is checked

Test Scenario(s)

You should see that it works just by looking at it /shrug

Checklist

• I've formatted my code with Black
• I've added docstrings to everything I've touched
• I've ensured my code works on Python 3.10.x
• I've ensured my code works on Python 3.11.x
• I've tested my changes
• I've added tests for my code - if applicable
• I've updated the documentation - if applicable