fix(platform): add better message when error on platform login (#155)

in 7.3+ when we update resources like rest api extension we need to
login to the platform (not nice...) when we are in local with the engine
there is no issue but in remote we need to have some system properties
set.
In that case it the login do not work we throw an exception with a
message that explain how to fix that.

Closes [BS-16035](https://bonitasoft.atlassian.net/browse/BS-16035)