Incorrect top bar button wrap on medium widths

[quincylvania]

On narrow widths, the top bar buttons hide their labels and just show their icons. On medium widths, the text unexpectedly wraps. This produces a janky and undesirable result:

The labels should be hidden instead.

[bhousel]

Yeah I noticed this a few times too... What's really supposed to happen is that the labels go away.

The buggy code is in here - probably because whatever browser is not calculating the widths correctly, or caching incorrectly whatever it thinks is the _needWidth value.

We can't really use a media query like I originally thought - because the header width depends on the width of the map, which depends on the width of the sidebar, not the width of the window.

[quincylvania]

@bhousel Thanks for pointing to the code! The issue was that when the buttons wrapped, they weren't contributing enough to the bar's scrollWidth property to trigger the class change. white-space: nowrap; fixed it.