Remove default features when fullstack is enabled and one platform is enabled in the default features (#3925)

* Don't enable default features when only either the server or client is enabled

Cargo.lock

@@ -4104,6 +4104,13 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "dioxus-playwright-default-features-disabled-test"
+version = "0.1.0"
+dependencies = [
+ "dioxus",
+]
+
 [[package]]
 name = "dioxus-playwright-fullstack-mounted-test"
 version = "0.1.0"