Add human readable labels to filter headings

[jpellizzari]

Closes #3590
Closes #3583

Adds human readable labels to the explorer filter, and removes facets that aren't relevant for a category.

Here is the Templates view; notice the "Template Type" label:

Here is the Applications view with the irrelevant facet removed:

[enekofb]

Added some questions around design background / considerations. I believe mostly around labels mapping.

Relevant facets design looks good to me, however testing i could see that Explorer page gives me less filters than expected:

I also tried to filter by template type without results but i expect one:

Last point: to review extending explorer documentation in case of needs update.

[enekofb]

please share your design considerations for adding it here vs other solutions like extending changing from Labels: []string{ to Labels: []label{

[jpellizzari]

It seemed like overkill for a Label to be a first class object. I can see how it might be useful though. I will take a look.

[jpellizzari]

@enekofb Took a pass at this and it involves a lot of cross cutting changes, specifically to converting store.Facets from a generic map[string][]string into a proprietary struct. I think as it is in this PR it is a bit simpler.

Mind if we address in a follow up instead?

[enekofb]

yes, i think that we could take this opportunity to kind of review our domain model and api ... let me setup something next week to pair on it

[jpellizzari]

Added some questions around design background / considerations. I believe mostly around labels mapping.

@enekofb I cannot reproduce. Explorer is working as expected in my environment.

Maybe we can screenshare to figure it out.

[enekofb]

Fantastic Jordan. Tested again and works now 🪂

Thanks for adding the tests.