* created 'berry' component
* added 'bit-berry' to 'popup-tab-navigation'
* simplified - removed null checks
* changed 'effectiveSize' to 'computedSize'
* fixed 'accentPrimary' color
* updated to not render berry if 'count' is 0 or negative number
* simplified checking count undefined
* updated computed padding
* switched from `[ngClass]` to `[class]`
* updated 'popup-tab-navigation' berry to use 'danger' variant
* fixed berry positioning in popup-tab-navigation
* updated content logic
* cleanup unused 'ngClass'
* updated conditional rendering of berry
* updated story 'Usage'
* updates with adding berry 'type'
* added type "status" to popup-tab-navigation
* fixed type error
* updated 'Count Behavior' description
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