Help tooltips in dashboad system info

[Hajto]

I think that adding tooltips to dashboard/system would be good idea. Some of users might be still new to Erlang/OTP/Elixir and they don't know much about some of the settings.

For example when user hovers over kernel support it could tell him what does option does and maybe how to enable it (i personally have no idea what it does) and what consequences could be.

Or for example when hovering over process limit we could tell user how processes the system is using already.