[css] [v4] Wrapping navbar content with a container adds extra margin to collapse button

[fabiano]

• Operating system and version: Windows 10
• Browser and version: Firefox 50.0.2, Chrome 55.0.2883.87
• JS Bin: https://jsbin.com/penemipaze/edit?html,css,output https://output.jsbin.com/penemipaze

I'm wrapping the content of the navbar with a container and it's adding an extra right margin on the collapse button when aligned to the right.

The navbar-toggler-right class adds a right margin of 1rem but it seems this is not necessary when wrapping the content with a container.