Backport - Add new browser: Ladybird

https://ladybird.org/

(cherry picked from commit 592bfdd33c)

test/browser-test.json

@@ -1058,6 +1058,16 @@
             "major"   : "91"
         }
     },
+    {
+        "desc"    : "Ladybird",
+        "ua"      : "Mozilla/5.0 (Linux; x86_64) Ladybird/1.0",
+        "expect"  :
+        {
+            "name"    : "Ladybird",
+            "version" : "1.0",
+            "major"   : "1"
+        }
+    },
     {
         "desc"    : "LibreWolf",
         "ua"      : "Mozilla/5.0 (X11; Linux x86_64; rv:97.0) Gecko/20100101 Firefox/97.0 LibreWolf/97.0.1",

test/engine-test.json

@@ -62,6 +62,15 @@
             "version" : "4.5.4"
         }
     },
+    {
+        "desc"    : "LibWeb",
+        "ua"      : "Mozilla/5.0 (Linux; x86_64) Ladybird/1.0",
+        "expect"  :
+        {
+            "name"    : "LibWeb",
+            "version" : "undefined"
+        }
+    },
     {
         "desc"    : "LibWeb",
         "ua"      : "Mozilla/4.0 (SerenityOS; x86) LibWeb+LibJS (Not KHTML, nor Gecko) LibWeb",