Detect JSON in output and use code block for it and make long outputs scrollable

[davorrunje]

Description

Detect JSON in output and use code block for it and make long outputs scrollable.

Type of change

• New feature (a non-breaking change that adds functionality)

Checklist

• I have conducted a self-review of my own code
• I have made the necessary changes to the documentation
• My changes do not generate any new warnings
• I have added tests to validate the effectiveness of my fix or the functionality of my new feature

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Files with missing lines	Coverage Δ
fastagency/helpers.py	93.10% <100.00%> (+33.10%)	⬆️
fastagency/ui/mesop/data_model.py	100.00% <ø> (ø)
fastagency/ui/mesop/message.py	54.81% <100.00%> (-0.28%)	⬇️
fastagency/ui/mesop/styles.py	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes