Tabs are not Responsive

[ghost]

Right Now If the Tabs are viewed in mobile like

So the user can't navigate to next tab. It would be better If there is previous, next button like the one below

Refer https://material.angularjs.org/latest/demo/tabs

[mseemann]

I'm not going to add such a feature for many reasons:

• it seems not to be supported by getmdl.io
• imho it's not the best user experience to have scrollable tabs
• ...

If someone want's to add this feature I can review the pr and add it.