Parse 'password_leaked' error message

[lbalmaceda]

Add the ability to parse password_leaked errors returned by the backend. This is currently handled in a generic way, displaying a default error message when this case happens.

If this PR gets merged, the error would look like this instead:

Copy subject to change and open to suggestions :)

The string resource can be overwritten by defining your own string resource using the very same key.

[lbalmaceda]

Changed the copy as suggested internally