do not collapse console errors on mouseUp

[spasovski]

fixes #192

This was clearly intentionally allowed before but I agree the new behaviour is better.

[mofojed]

Don reviewed this for UX? You can't select the first line of the exception, we need to be able to select the full exception.

[dsmmcken]

true, not sure it's any better, it just shifted the problem from the body to the button.

[spasovski]

The button text is selectable (though not easily) - I'd float a copy to clipboard button to the far right of the error expand button and we can manually write the full text to the clipboard.

[mofojed]

You can't select the button/top line of text at all right now? A floating copy button might be handy for copying a particular exception, but you should also just be able to copy the console output in general (eg. if you have a bunch of logging lines, then an exception, more logging, you should be able to select all that).