[X] ML - Move navigation to single bar (screen-sm)

[mtedeschi]

On screen-sm, let's make the navigation fit into a single bar.

[amberreeves]

jeff has design questions for mike

[mtedeschi]

@jmaj, please post your question here and I'll respond.

[jmaj]

It was About and Legal, but it's been updated

[mtedeschi]

Seeing the text for these in English. Can you:

• [x] Make sure the text is translated
• [x] Center the title in the bar
• [x] Reduce space below nav so the white arrow touches the bottom of the header

[jmaj]

Completed the three points above on ML