Display <custodhist> at the component level

[marlo-longley]

custodhist

Broken out of #898

[gwiedeman]

This one is also already displaying: https://github.com/projectblacklight/arclight/blob/main/lib/generators/arclight/templates/catalog_controller.rb#L327

However, both <custodhist> and processinfo (#1463) are using _html_tesm, so I'm wondering @seanaery if you found examples where the tags within them were something more elaborate than <p>s and they wouldn't display? It looks like this would index whatever, but I wonder if there are cases where odd XML wouldn't display in a browser?

[seanaery]

@gwiedeman As far as I can tell, all our Duke finding aids that have processinfo or custodhist are composed entirely of head & p tags, BUT I do see that either of those elements by EAD2002 specs can contain elements like chronlist that we have other special formatting rules for, so it may be safest to leave those elements capturing the raw XML (to_text: false) during indexing and piping them through the render_html_tags helper for display.

[gwiedeman]

Ah, I get what that's doing now. I'll have to update #1466 next week then.

[gwiedeman]

This is safe to close then,