Django-shopify-auth

Changed
- Reverted Django version requirement back to 3.2.

Added
- Added utility functions for managed app installation.

Changed
- Shopify UI extensions send tokens without iss key. To prevent the middleware from raising exceptions for these requests we're now ignoring missing iss key.

Removed
- Removed support for cookie based embedded apps.
Changed
- Migrate redirect calls to App Bridge 3.
- The template `iframe_redirect.html` now expects `host` parameter, not `shop`.
- `session_tokens.views.get_scope_permission` now detects `embedded` query parameter.
- `session_tokens.views.FinalizeAuthView` now redirects to the domain defined in `host` query parameter if present.

Changed
- Don't escape redirect_uri in iframe_redirect.html. Shopify gracefully handles HTML encoded URLs, but occasionally it doesn't.
- Update URL definitions to be compatible with Django 4.

Changed
- Migrate redirect calls to App Bridge.