YiiDebug::dump() not working properly with panels

[Greg Korba]

I'm wondering why that backtrace and additional border were added in afcb27c.

I have for example protected\vendor\malyshev\yii-debug-toolbar\YiiDebugToolbarPanel.php in line 70 everywhere in settings panel. The panel takes twice more than it needs because of extra borders, paddings and backtrace info - this is annoying, not helpful.

Also in other panels it does not work as expected - properties and data are rendered in separate frames:

Currently I forced composer to use 3cb6ba (previous commit).