Add librewolf.dev (#4179)

data/category-browser-!cn

@@ -1,6 +1,7 @@
 include:ceno
 include:epicbrowser
 include:firefox
+include:librewolf
 include:torproject
 
 # chromium
@@ -19,7 +20,6 @@ floorp.app
 iridiumbrowser.de
 kiwibrowser.com
 kmeleonbrowser.org
-librewolf.net
 minbrowser.org
 netsurf-browser.org
 opera.com

data/librewolf

@@ -0,0 +1,2 @@
+librewolf.dev
+librewolf.net