As setas de revisão do histórico de edição não estão corretas para idiomas RTL

[Osama]

For “pointy” icons, we need to flip them so they point in the correct direction for RTL languages. We do this via CSS by targeting pointy icons and rotating them 180 degrees:

app/assets/stylesheets/common/base/rtl.scss

We just need to add these forward/backward icons to the list above.