Typo in contact email address (#3292)

The demo template includes a drop down menu item named Contact
has an email address to the founders. However, the email address
includes an extraneous = character in the domain part making it
invalid.

Signed-off-by: Eric Brown <eric_wade_brown@yahoo.com>

reflex/.templates/apps/demo/code/demo.py

@@ -44,7 +44,7 @@ def template(main_content: Callable[[], rx.Component]) -> rx.Component:
                 ),
                 rx.chakra.menu_item(
                     rx.chakra.link(
-                        "Contact", href="mailto:founders@=reflex.dev", width="100%"
+                        "Contact", href="mailto:founders@reflex.dev", width="100%"
                     )
                 ),
             ),