Update Documentation for GitLab Architecture Components to Include Which are N/A

Problem to solve

We are not differentiating between which paths are Not Applicable and which just don't exist in the component list documentation. This can be confusing to users who may not understand which combinations are valid and which are not.

Proposal

Update icon to N/A if the connection is not valid. Red X's should only exists for connections that are not yet implemented/built out.