Only show example format for the dynamic badge that is selected in the frontend

[MonliH]

This PR implements the suggestion in #1844. That is, it shows the example format for the current selected data type:

When no datatype is selected, this implementation shows a more general form, https://img.shields.io/badge/dynamic/<DATA_TYPE>?url=<DATA_URL>&label=<LABEL>&query=<QUERY>&color=<COLOR>&prefix=<PREFIX>&suffix=<SUFFIX>

[calebcartwright]

Really appreciate the PR, but I'm probably a 👎 on this one for a few reasons.

First, we've consistently gotten reports from users that the existing UI is unclear/doesn't necessarily convey relevant features. I can understand where someone deeply familiar with using the dynamic badge builder in that section of the page would view the other examples as visual noise, but I think having it present (with zero user action) for new users is more important than reducing that visual noise.

Secondly, we're in need/planning on overhauling the frontend entirely, and I don't think it's worth making any minor changes which aren't objectively, non-controversial improvements to the existing ui (refs #1899 and #7815).

I move we close this, but will wait to hear what @chris48s thinks

[MonliH]

Ah I understand. That's actually what I thought after investigating the redesign efforts (very exciting stuff!). Fair enough to not want to make minor changes like this when most of the UI will be overhauled anyway.

[calebcartwright]

Thanks again @MonliH but going to go ahead and close given the above discussion