Move help sidebar content to crowdin

[lpugin]

It would probably be better to have sidebar help texts such as this one to crowdin.

[jenniferward]

Yes, and dashboard text too?

Edit: I mentioned this here: rism-digital/muscat-guidelines#24

[xhero]

How should this work? Should we setup a different one for the texts (I'm not sure we can have more than two workspaces, no?).
The main problem is that texts are scattered all around muscat, so we need to setup a way that this stuff is synced automatically, also the naming must follow the rails conventions to work.