LoanMetadata name property mixed types

[topless]

You will notice when we create the rows for the metadata table, that the name property can be two different things. Either a string or a react component. The name property is also used as a key for our metadata table entries. This triggers the react error, because more than one entry has a key [object Object] (from the object name entries).

[FlorianCassayre]

Fixed by #193.
The name property should only be passed a string value; and it makes sense, otherwise it can break the layout. As it turns out, the only use case for having a node was to have an icon before the text, which is a very valid reason. This was addressed by adding an optional icon property (of type node).