R1:2ca269cb3113

Replace Roboto Slab with Aleo for PHUIDocumentView

Summary: These fonts are functionally very similar, but in diagnosing a problem with mobile Safari/Chrome, it turned out that our use of "bold" with the "normal" font build created a "semibold" look when on desktop and a "normal" look on mobile. The "semibold" feel is more important, so finding a lighter "bold" font was the impetus for this font switch. As it turns out **Aleo** is built by the same author as **Lato** (our other font) and is intended as…