* Modify templates with codemods angle brackets
* ui: Fix up problem with intention filter action attribute
Co-authored-by: Kenia <19161242+kaxcode@users.noreply.github.com>
* Change all instances of yield/block-slots to use attributes over positional arguments
* Remove the ability to use yield/block-slots with positional params
Adds namespace support to the UI:
1. Namespace CRUD/management
2. Show Namespace in relevant areas (intentions, upstreams)
3. Main navigation bar improvements
4. Logic/integration to interact with a new `internal/acl/authorize` endpoint
John Cowen