Fix Bug 397752 - HTML articles appear very small
GrantleeViewFormatter converts user configured font size from points to pixels, but there's no such conversion in AkregatorPart, where QWebEngineSettings::setFontSize also expects the font size in pixels. As a result fonts on sites using relative units (em or rem) are small, unless DPI is close to 72. The point to pixel conversion should be either in both places, or none. I chose the latter option, because then the font sizes in Akregator match values in Falkon.