The VimspectorEval command used `-bar` but this prevented the use of double quotes. This seems much more useful than a vim comment in this scenario, so remove the `-bar`.
This is _techncially_ breaking change, but I don't think it's likely anyone will be relying on doing `VimspectorEval x | something else`. If they are, sorry.
- don't clear the stack trace on continue - track running status
properly (ish)
- mark threads (running) when the app is executing
- indicate the "current" thread with a different icon
TODO:
- allow user to specify current thread?
- track running status of threads individually?
- allow to pause/continue specific threads?
