Content description improvements

[javier-molina]

This issue is an extension for #42

Requirements Remove the content for External links keeping only the Taxon Identifiers section.

See screenshot and sample pages

• https://bie-test.ala.org.au/species/NZOR-6-24112#overview
• https://bie-test.ala.org.au/species/https://biodiversity.org.au/afd/taxa/e6aff6af-ff36-4ad5-95f2-2dfdcca8caff

Rational Some pages will contain taxonomic information that may conflict with the information already provided by the ALA.

[adam-collins]

commit https://github.com/AtlasOfLivingAustralia/ala-bie-hub/commit/c41b0a2f356a21c6de897cc32ac324be4d5c1ec8

[kylie-m]

tested for Gallirallus philippensis, and Osphranter rufus, passed