consolidate subjects

[mekarpeles]

merges duplicate subject sections -- take the full/complete list of subject tags and moves them up to section above the fold (replacing the abridged version in the overview). The complete subjects are show within a "show more" area.

i.e.

https://testing.openlibrary.org/works/OL17991110W/Puerto_Rican_women%27s_history

Gets substituted with this full content (which then is removed from the below section):

Stakeholders

[mekarpeles]

cc: @mheiman + @jimchamp

@cdrini and I discussed; the plan seems like we'll remove all subjects/times/people to above the fold and by default render as

.clamp {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1; // in the future, this could be used for edition.description + increase to e.g. 5
    overflow: hidden;
}

The Read More logic will include a toggle of overflow: hidden for any child that has .clamp.

Note This will not use the existing Read More code, it will use a new js function which simply toggles overflow for children w/ .clamp

We'll have to add this to our site template (e.g. header) so the site works for folks w/o js

<noscript>
    <style>.clamp { -webkit-line-clamp: unset !important }</style>
</noscript>

• We'll remove subjects duplicate from the Work section

[mekarpeles]

@jimchamp can we turn this into a new issue which is Needs: Help + Good First Issue and see if someone from the community is willing to help?

[mekarpeles]

Supplanted by #6265