NEWS: some move around items.

The Windows input device preference moved to "Core" next to the new
thumbnail preference.
The thumbnail icon moved to "User Interface".

Feels more logical this way.

NEWS

@@ -40,6 +40,9 @@ Core:
     default user value. A new settings in the "Image Import & Export"
     section of the Preferences allows to select whether thumbnail saving
     should be enabled by default or not.
+  - Preferences now allows to select the input device API on Windows
+    (Wintab or Windows Ink), as Windows Pointer Input Stack (Windows
+    Ink) support was added recently in GTK3.
 
 Tools:
 
@@ -54,11 +57,13 @@ Tools:
 
 User Interface:
 
-  - Preferences now allows to select the input device API on Windows
-    (Wintab or Windows Ink), as Windows Pointer Input Stack (Windows
-    Ink) support was added recently in GTK3.
   - Layout of the Canvas Size dialog re-designed a bit more horizontally
     after the template selector feature made it too high.
+  - Thumbnail icon feature was dropped: when images were opened, the
+    application icon used to be a composition of the active image and
+    the application icon (Wilber). This was confusing, hard to
+    distinguish and working on less and less platforms because of recent
+    OS and desktop rules or logics changes.
 
 API:
 
@@ -112,11 +117,6 @@ Build:
     Installer" and/or "5. Flatpak package" are respectively set in the
     MR labels.
   - Scalable GIMP application icon is installed too.
-  - Thumbnail icon feature was dropped: when images were opened, the
-    application icon used to be a composition of the active image and
-    the application icon (Wilber). This was confusing, hard to
-    distinguish and working on less and less platforms because of recent
-    OS and desktop rules or logics changes.
   - Generate SHA* checksums for CI-generated Windows installers.
   - New `CODING_STYLE.md` document in repository for our coding style
     rules.