web: provide a context for checking the status of the enterprise license (#8153)

* web: provide a context for enterprise license status

There are a few places (currently 5) in our code where we have checks for the current enterprise
licensing status of our product. While not particularly heavy or onerous, there's no reason to
repeat those same lines, and since our UI is always running in the context of authentik, may as well
make that status a client-side context in its own right. The status will update with an
EVENT_REFRESH request.

A context-aware custom alert has also been provided; it draws itself (or `nothing`) depending on the
state of the license, and the default message, "This feature requires an enterprise license," can be
overriden with the `notice` property.

These two changes reduce the amount of code needed to manage our license alerting from 67 to 38
lines code, and while removing 29 lines from a product with 54,145 lines of code (a savings of
0.05%, oh boy!) isn't a miracle, it does mean there's a single source of truth for "Is this instance
enterprise-licensed?" that's easy to access and use.

* web: [x] The translation files have been updated

web/src/elements/Interface/licenseSummaryProvider.ts

@@ -0,0 +1,25 @@
+import { authentikEnterpriseContext } from "@goauthentik/elements/AuthentikContexts";
+
+import { consume } from "@lit-labs/context";
+import type { LitElement } from "lit";
+
+import type { LicenseSummary } from "@goauthentik/api";
+
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+type Constructor<T = object> = abstract new (...args: any[]) => T;
+
+export function WithLicenseSummary<T extends Constructor<LitElement>>(
+    superclass: T,
+    subscribe = true,
+) {
+    abstract class WithEnterpriseProvider extends superclass {
+        @consume({ context: authentikEnterpriseContext, subscribe })
+        public licenseSummary!: LicenseSummary;
+
+        get hasEnterpriseLicense() {
+            return this.licenseSummary?.hasLicense;
+        }
+    }
+
+    return WithEnterpriseProvider;
+}