Layout problems with long error messages from modal form

[seancolsen]

Steps to reproduce

1. Set up a database with a table that uses a custom Mathesar PostgreSQL type such as Email.

2. Try to disconnect the database and remove the mathesar_types schema.

3. Observe this error. That's good.

   

4. But when the viewport gets short, things break down:

   

Fixing this problem is tricky. I took a quick stab and came to the conclusion that we're going to need to be clever and handy to do this right. What exactly should happen here is not straightforward. Something needs to scroll or collapse, but what exactly? And how to fix it without breaking other things is also not trivial. Perhaps we need an altogether better way of displaying long error messages. I'm not sure.