New tab button hidden when too many tabs are open

[Mackiavelli]

When too many tabs are open, after they are resized to be narrower automatically by the application, a tab will hide the plus button, limiting the amount of tabs that can be opened at the same time. I think it would be a good idea if it could be changed so that the tab area behaves like in a real browser - with little arrow buttons on each side allowing you to scroll horizontally between different tabs. Also, that will virtually remove the limit on the tabs.

[georgeOsdDev]

Thank you feedback.

For horizontal scroll:
You can override scrollX:'scroll' with props.tabsStyles.tabBar
And you can use any element with your style as props.tabAddButton.

For limiting tab counts:
You can limit number of tabs by app.js side.

I'm welcome your PR for default behavior and design,
Thanks!