Hided home/trash/network desktop icons by default.
Also changed their default logo settings (cs_info and menu), so what we
should modify to cinnamon-symbolic is now linuxmint-logo-ring-symbolic.
We are lucky, linuxmint-logo-ring-symbolic only appears in a few other
places and non of them are useful, menu@cinnamon.org/settings-override.json
simply won't work because cinnamon-common doesn't know that file.
Also set default cursor theme, this package now directly provides those
cursor themes. And, we now default to the Mint-Y-Aqua theme.
