Add tab bar extra content for tabs

[H4ad]

Like prefix/suffix, a way to add custom content for right/left.

The usecase is to add some right content in the same level of the tabs.

[rinkydevi]

@H4ad i can pick this up

[H4ad]

About this one, the task is basically to allow add components on left/right (in the orage areas):

To be able to put buttons and any other component here.

We can have a new prop for left and one for right, and one story on storybook to showcase this prop