Add a defined place to set a breakpoint for any non-clean exit

Your idea

Adding something like this:

    std::set_terminate([]()
    {
        std::cout << "Unhandled exception\n" << std::flush;
        // set a debuger's breakpoint here to get a proper stack trace on any crash
        std::abort();
    });

somewhere in early startup, like in main(), prior to entering the main loop, would enable us to properly debug any crash, to at least get a proper stack trace.

Problem to be solved

Debugging some crashes is next to impossible when not being able to get a proper stack trace.
One example woulde be "pure virtual method called".

Prior art

There's one place that exists already for this, but that only catches qAssert()s, as far as I can tell

Additional context

n/a

Checklist

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