Bump version to 42.0

Update NEWS.

Part-of: <!2239>

NEWS

+42.0
+====
+* introspect: Add WindowsChanged signal [Cenk; !2229]
+* Fix on-screen keyboard during grabs [Carlos; !2237]
+* Fixed crash [Adam; !2238]
+
+Contributors:
+  Carlos Garnacho, Cenk Uluisik, Adam Williamson
+
+Translators:
+  Fabio Tomat [fur], Tim Sabsch [de], Ivan Molodetskikh [ru],
+  Yosef Or Boczko [he], Марко Костић [sr], Baurzhan Muftakhidinov [kk],
+  純 小山田 [ja], sicklylife [ja]
+
 42.rc
 =====
 * Fix programatically set scrollview fade [Jonas D.; !2189]

meson.build

 project('gnome-shell', 'c',
-  version: '42.rc',
+  version: '42.0',
   meson_version: '>= 0.58.0',
   license: 'GPLv2+'
 )
@@ -25,7 +25,7 @@ gio_req = '>= 2.56.0'
 gi_req = '>= 1.49.1'
 gjs_req = '>= 1.71.1'
 gtk_req = '>= 3.15.0'
-mutter_req = '>= 42.rc'
+mutter_req = '>= 42.0'
 polkit_req = '>= 0.100'
 schemas_req = '>= 42.beta'
 startup_req = '>= 0.11'

subprojects/extensions-app/data/metainfo/org.gnome.Extensions.metainfo.xml.in

@@ -39,15 +39,9 @@
   </description>
 
   <releases>
-    <release version="42.rc" type="development" date="2022-03-07"/>
-    <release version="42.beta" type="development" date="2022-02-14">
+    <release version="42.0" date="2022-03-12">
       <description>
-        <p>Modernize look and feel.</p>
-      </description>
-    </release>
-    <release version="42.alpha" type="development" date="2022-01-10">
-      <description>
-        <p>Use libadwaita for platform integration and consistency.</p>
+        <p>Use libadwaita for platform integration and consistency. Modernize look and feel.</p>
       </description>
     </release>
   </releases>

subprojects/extensions-app/meson.build

 project('gnome-extensions-app',
-  version: '42.rc',
+  version: '42.0',
   meson_version: '>= 0.58.0',
   license: 'GPLv2+'
 )

subprojects/extensions-tool/meson.build

 project('gnome-extensions-tool', 'c',
-  version: '42.rc',
+  version: '42.0',
   meson_version: '>= 0.58.0',
   license: 'GPLv2+'
 )

subprojects/shew/meson.build

 project('shew', 'c',
-  version: '42.rc',
+  version: '42.0',
   meson_version: '>= 0.58.0',
   license: 'LGPLv2+',
 )