chore(components): remove unnecessary demo app

Closes #6
fix(suggestIt): remove mandatory suggestion check

A check was added in the refactor that required a suggestion to always
be present for a message to print. However, there may be cases where
no suggestion is given. A test case clarifying when a suggestion should be
given is added and this check is removed.
refactor(hintLog): update module to use HintLog v0.4.0

Closes #9