fix appearance broken by #3812

reflex/app.py

@@ -847,12 +847,6 @@ def get_compilation_time() -> str:
             (0, "AppWrap"): AppWrap.create()
         }
 
-        if self.theme is not None:
-            # If a theme component was provided, wrap the app with it
-            app_wrappers[(20, "Theme")] = self.theme
-            # Fix #2992 by removing the top-level appearance prop
-            self.theme.appearance = None
-
         for route in self.unevaluated_pages:
             console.debug(f"Evaluating page: {route}")
             self._compile_page(route)
@@ -1009,6 +1003,12 @@ def _submit_work(fn, *args, **kwargs):
         )
         progress.advance(task)
 
+        if self.theme is not None:
+            # If a theme component was provided, wrap the app with it
+            app_wrappers[(20, "Theme")] = self.theme
+            # Fix #2992 by removing the top-level appearance prop
+            self.theme.appearance = None
+
         # Compile the app root.
         compile_results.append(
             compiler.compile_app(app_root),