feat(xo-web/host): pro support icon at host level (#6633)

- Host is not XCP-ng: no icon
- Host doesn't have license or is part of a pool that contains at least one host that doesn't have a license: orange life buoy
- Host has license and all hosts in its pool has license (=supported host): green life buoy
- Host doesn't have license and at least one host in its pool has a license: red triangle

CHANGELOG.unreleased.md

@@ -12,6 +12,7 @@
 - [Backup] Display the SR name label in the log even if the SR is not currently connected
 - [Import VM] Ability to import multiple VMs from ESXi (PR [#6718](https://github.com/vatesfr/xen-orchestra/pull/6718))
 - [Backup/Advanced setting] Ability to add transfer limit per job (PRs [#6737](https://github.com/vatesfr/xen-orchestra/pull/6737), [#6728](https://github.com/vatesfr/xen-orchestra/pull/6728))
+- [License] Show Pro Support status icon at host level (PR [#6633](https://github.com/vatesfr/xen-orchestra/pull/6633))
 
 ### Bug fixes