Checklist

• The bug is reproducible against the latest release or master.
• There are no similar issues or pull requests to fix it yet.

Describe the bug

Hi,

I am passing a custom formatter for the Details page like this:

# field1 is a dictionary
column_formatters_detail = {"column1": lambda m, a: json.dumps(m.field1, indent=4)}

However, when I go to the details page that formatting (pretty json) is not there, it still appears as a single json line. Is this a bug? How can I correct this without having to alter the templates? (no html). Is it possible to do it with WTForms?

Steps to reproduce the bug

No response

Expected behavior

No response

Actual behavior

No response

Debugging material

No response

Environment

OS: Ubuntu 22.04
Python3.11
sqladmin version = 0.20.1

Additional context

No response