Put the News layer and Cockpit news entries in one changelog fragment

One pull request carries both, and a pull request number names one fragment.

changelog.d/0-news-layer.md

@@ -19,3 +19,10 @@
   its daily allowance. The Data attribution popover credits the GDELT
   Project, World News API and, once its items show, Liveuamap
   (AUTHOR, #1).
+- Cockpit Regional News holds its list to the last 24 hours, newest first, on
+  the server and in the client, and labels its four states apart: fresh
+  results with no banner and a `LAST 24 H` footer, earlier results kept after
+  a failed refresh as `CACHED · REFRESH FAILED`, `NO NEWS IN THE LAST 24 H`,
+  and `REGIONAL NEWS UNAVAILABLE`. The banner is now really hidden over a
+  populated list, and the footer no longer reverts to a static `RECENT` on a
+  page change (AUTHOR, #0).

changelog.d/0-regional-news-freshness.md

@@ -1,7 +0,0 @@
-- Cockpit Regional News holds its list to the last 24 hours, newest first, on
-  the server and in the client, and labels its four states apart: fresh
-  results with no banner and a `LAST 24 H` footer, earlier results kept after
-  a failed refresh as `CACHED · REFRESH FAILED`, `NO NEWS IN THE LAST 24 H`,
-  and `REGIONAL NEWS UNAVAILABLE`. The banner is now really hidden over a
-  populated list, and the footer no longer reverts to a static `RECENT` on a
-  page change (AUTHOR, #0).