fix link element test

Changes are made regarding to `host`, `port` and `hostname`. Definitions are provided by MDN.

Author: nikneym

src/tests/html/link.html

@@ -16,8 +16,10 @@
   testing.expectEqual('https://lightpanda.io', link.origin);
 
   link.host = 'lightpanda.io:443';
-  testing.expectEqual('lightpanda.io:443', link.host);
-  testing.expectEqual('443', link.port);
+  // Port is omitted if its the default one for the scheme.
+  testing.expectEqual('lightpanda.io', link.host);
+  // Port is omitted if its the default one for the scheme.
+  testing.expectEqual('', link.port);
   testing.expectEqual('lightpanda.io', link.hostname);
 
   link.host = 'lightpanda.io';
@@ -42,9 +44,10 @@
 
   testing.expectEqual('', link.port);
   link.port = '443';
-  testing.expectEqual('foo.bar:443', link.host);
+  // Port is omitted if its the default one for the scheme.
+  testing.expectEqual('foo.bar', link.host);
   testing.expectEqual('foo.bar', link.hostname);
-  testing.expectEqual('https://foo.bar:443/?q=bar#frag', link.href);
+  testing.expectEqual('https://foo.bar/?q=bar#frag', link.href);
   link.port = null;
   testing.expectEqual('https://foo.bar/?q=bar#frag', link.href);