Update featured cards

Making some of these dataset URLs explicit somewhat goes against the
slack discussion linked in 3edcf03 but
now it's easy to change the cards - something we'll hopefully do
frequently - that explicit links, and the more detailed titles they
allow, are preferable.

Co-authored-by: James Hadfield <hadfield.james@gmail.com>

static-site/src/components/splash/showcase.yaml

@@ -5,27 +5,27 @@ cards:
 - name: SARS-CoV-2 (open)
   img: ncov.png
   url: /ncov/open/global
-- name: 'neherlab: SARS-CoV-2 in Europe'
-  img: ncov.png
-  url: /groups/neherlab/ncov/europe?f_region=Europe&p=grid
-- name: 'SPHERES: SARS-CoV-2 in USA'
-  img: ncov.png
-  url: /groups/spheres/ncov/usa
-- name: Mpox
-  img: mpox.png
-  url: /mpox
-- name: Avian influenza
+- name: Avian influenza (cattle flu genome)
   img: avianinfluenza.png
-  url: /avian-flu
+  url: /avian-flu/h5n1-cattle-outbreak/genome
+- name: Avian influenza (H5N1/HA)
+  img: avianinfluenza.png
+  url: /avian-flu/h5n1/ha/2y
+- name: Mpox (clade IIb)
+  img: mpox.png
+  url: /mpox/clade-IIb
 - name: DRC Ebola (2018-19)
   img: ebola2.png
   url: /community/inrb-drc/ebola-nord-kivu
-- name: Yersinia pestis
-  img: yersinia.png
-  url: /community/ktmeaton/yersinia-pestis/maximum-likelihood/all?m=div
-- name: WNV in the Americas
+- name: Measles (N450)
+  img: measles.jpg
+  url: /measles/N450
+- name: Seasonal Influenza
+  img: seasonalinfluenza.png
+  url: /seasonal-flu
+- name: WNV in the Americas (narrative)
   img: wnv2.png
   url: /narratives/twenty-years-of-WNV
-- name: DRC Ebola Sit Rep
+- name: DRC Ebola Sit Rep (narrative)
   img: ebola3.png
   url: /narratives/inrb-ebola-example-sit-rep