feat: upgrade to Tailwind v4 & DaisyUI v5; include output.css

- Upgrade Tailwind to v4
- Upgrade DaisyUI to v5
- Fix output.css being ignored in the installed package, effectively
  breaking django-allauth-ui

Author: danihodovic

allauth_ui/static/allauth_ui/input.css

@@ -1,3 +1,5 @@
-@tailwind base;
-@tailwind components;
-@tailwind utilities;
+@import "tailwindcss";
+
+@plugin "daisyui" {
+	themes: all;
+}