fix(nests): point default moq.nostrnests.com URLs at port 4443

The public nostrnests deployment serves moq-auth + moq-relay on
:4443; :443 is not the live endpoint. With the old defaults a
freshly-created room could never mint a JWT, so the room screen
parked on "Reconnecting" forever and the room never showed up in
the nostrnests UI.

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/actions/nestsServers/NestsServersScreen.kt

@@ -250,5 +250,5 @@ private fun NestsServerEntry(
  */
 val DEFAULT_NESTS_SERVERS: List<NestsServer> =
     listOf(
-        NestsServer(name = "nostrnests.com", baseUrl = "https://moq.nostrnests.com"),
+        NestsServer(name = "nostrnests.com", baseUrl = "https://moq.nostrnests.com:4443"),
     )

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/create/CreateNestViewModel.kt

@@ -356,7 +356,7 @@ class CreateNestViewModel : ViewModel() {
          * room here. Users can edit either field to point at their own
          * moq-auth / moq-relay pair.
          */
-        const val DEFAULT_SERVICE_URL: String = "https://moq.nostrnests.com"
-        const val DEFAULT_ENDPOINT_URL: String = "https://moq.nostrnests.com"
+        const val DEFAULT_SERVICE_URL: String = "https://moq.nostrnests.com:4443"
+        const val DEFAULT_ENDPOINT_URL: String = "https://moq.nostrnests.com:4443"
     }
 }