* Overlay for tab-panels

Don't know if i did it right, double check plz... 
There's a way to avoid the use of a overlay-wrapper? i'm not good in css....

* Update navbar.html

Fixed duplicated ids on NavBar Example page

* Fixed error in cards.md

card tools:
data-widget -> data-card-widget

* Fixed typo in card-widget.md

collapseTrigger's default value:
[data-card-widget="remove"] -> [data-card-widget="collapse"]

removeTrigger's default value:
[data-card-widget="collapse"] -> [data-card-widget="remove"]

Removed commas

Co-authored-by: Raphael Jackstadt <info@rejack.de>