Move extension refresh swap function to libs so other clients can use it (#10640)

* Move extension refresh swap function to libs so other clients can use it

* Update extensionRefreshSwap docs

libs/angular/src/utils/extension-refresh-swap.ts

@@ -0,0 +1,32 @@
+import { Type, inject } from "@angular/core";
+import { Route, Routes } from "@angular/router";
+
+import { FeatureFlag } from "@bitwarden/common/enums/feature-flag.enum";
+import { ConfigService } from "@bitwarden/common/platform/abstractions/config/config.service";
+
+import { componentRouteSwap } from "./component-route-swap";
+
+/**
+ * Helper function to swap between two components based on the ExtensionRefresh feature flag.
+ * @param defaultComponent - The current non-refreshed component to render.
+ * @param refreshedComponent - The new refreshed component to render.
+ * @param options - The shared route options to apply to the default component, and to the alt component if altOptions is not provided.
+ * @param altOptions - The alt route options to apply to the alt component.
+ */
+export function extensionRefreshSwap(
+  defaultComponent: Type<any>,
+  refreshedComponent: Type<any>,
+  options: Route,
+  altOptions?: Route,
+): Routes {
+  return componentRouteSwap(
+    defaultComponent,
+    refreshedComponent,
+    async () => {
+      const configService = inject(ConfigService);
+      return configService.getFeatureFlag(FeatureFlag.ExtensionRefresh);
+    },
+    options,
+    altOptions,
+  );
+}