v0.22.0

• Controls enhancement (#2882)
• Theme Enhancement (#2955)
• Rive Control (#2841)
• Control.parent property (#2906)
• Container.on_tap_down event
• Add upload_endpoint_path into flet.fastapi.app (#2954)
• Add checkbox border side state (#2973)
• Global context for session (#2934)
• Fix silent error in page.run_task (#2959)
• Web: patch html title with app_name (#2909)
• Container: fix triggered both on_click and on_long_press events (#2914)