Add more columns to semantic model and metric pages

[mirnawong1]

Contributions

• I have read the contribution docs, and understand what's expected of me.

Link to the page on docs.getdbt.com requiring updates

Per @matthewshaver in this PR comment

With tables like this we commonly have a separate field for the type, Required? and an example so it doesn't get lost in the description (see example here ).

Type should be string/boolean/integer rather than optional/required for example

It might be beneficial to do that here

What part(s) of the page would you like to see updated?

all metrics and semantic model pages

e.g. https://docs.getdbt.com/docs/build/cumulative

Additional information

No response