[Feature] Make chat template error messages copy-pasteable

[brankoradovanovic-mcom]

Feature Request

Chat template error messages are displayed like this:

The error message itself, however, can't be copy-pasted. This makes it harder for users to:

1. Obtain information about the error message (e.g. by searching online)
2. Report the issues in an organized way (i.e. the way that would enable online searching in the first place). Chances are users will simply upload the screenshot.

To use the actual error message displayed above as an example: it may or may not have appeared in an error report before, there is no way of telling if it was uploaded as a screenshot. It has appeared now, but there's no way of telling that either.

[manyoso]

good idea