Consider splitting cadl ranch dashboard into 2 pages

[m-nash]

We should consider splitting the cadl ranch coverage into two pages one which is only 3p and one which is only azure so that we don't end up with solid red boxes for emitters that are specific to a flavor.

We could also consider making the 3p one public so customers could see what is currently available since there are questions on ms/tsp that ask this question occasionally. microsoft/typespec#3129

[lirenhe]

@sarangan12, is this still a valid ask after we have the new proposal on how the dashboard would look lik?