Prepared release 3.31.3

NEWS

+GNOME Mines 3.31.3
+=====================
+
+* Avoid unnecessary icon regeneration !4 (Yanko Kaneti)
+* Extend css to cover tile theme images (Yanko Kaneti)
+* Fixed initial aspect ratio issues #28 (Yanko Kaneti)
+* Change default theme to bgcolors #20 (Robert Roth)
+* Remove transitions for a snappier experience #14 (Robert Roth)
+* Add Keyboard shortcuts overlay !6 (Jeremy Bicha)
+* Updated translations
+* Code cleanup
+
 GNOME Mines 3.31.1
 =====================
 

meson.build

 project ('gnome-mines', ['vala', 'c'],
-         version: '3.31.1',
+         version: '3.31.3',
          license: 'GPLv3+',
          default_options: [
              'warning_level=1',