talker_flutter: TalkerScreen doesn't display stack traces

[wcoder]

Describe the bug
The stack trace is not displayed when TalkerDataCard is expanded.

To Reproduce
Steps to reproduce the behavior:

1. _talker.error(any exception)
2. open TalkerScreen

Expected behavior
When the TalkerDataCard is expanded, stack trace should be displayed.

Screenshots
If applicable, add screenshots to help explain your problem.

Env:

• OS: Android, iOS
• talker_flutter: 4.1.3

Investigation

The problem is here:

talker/packages/talker_flutter/lib/src/ui/widgets/data_card.dart

Lines 177 to 180 in 09e75c5

	if (widget.data is! TalkerError && widget.data is! TalkerException) {
	return null;
	}
	return 'StackTrace:\n${widget.data.stackTrace}';

The usual widget.data contains a TalkerLog object and is caught by this condition above and returns null.

Workaround

talker.error('$message\nex:$ex\nst:$stacktrace', ex, stacktrace);

[Frezyx]

Hello @wcoder !
This is really a bug. We need to fix this issue ⚙️