Bug 1573724: turn text-underline-offset pref on by default (in early-beta and earlier) r=dholbert

Differential Revision: https://phabricator.services.mozilla.com/D41882

--HG--
extra : moz-landing-system : lando

devtools/shared/css/generated/properties-db.js

@@ -10202,6 +10202,20 @@ exports.CSS_PROPERTIES = {
       "uppercase"
     ]
   },
+  "text-underline-offset": {
+    "isInherited": true,
+    "subproperties": [
+      "text-underline-offset"
+    ],
+    "supports": [],
+    "values": [
+      "auto",
+      "inherit",
+      "initial",
+      "revert",
+      "unset"
+    ]
+  },
   "top": {
     "isInherited": false,
     "subproperties": [

modules/libpref/init/StaticPrefList.yaml

@@ -4056,7 +4056,7 @@
 # text underline offset
 - name: layout.css.text-underline-offset.enabled
   type: bool
-  value: false
+  value: @IS_EARLY_BETA_OR_EARLIER@
   mirror: always
 
 # text decoration thickness