LP1860044 Angular catalog search result highlights

LP1860044 Angular catalog search result highlights

Support search field highlighting in the Angular staff catalog
search result and record detail pages.

Adds a new <eg-bib-display-field /> component for rendering the
highlighted content.

Move the catalog-common module import into the staff common module so
the bib-summary component has access to the new display-field component.

Drop the default search result page size to 10 for consistency with
other catalogs (and to speed up rendering).  Note users can still set
the page size of their choice via user settings.

Signed-off-by: Bill Erickson <berickxx@gmail.com>