feat: add the description also to the NFS

Signed-off-by: ElaineDeMattosSilvaB <elaine.mattos@gmail.com>

.changeset/polite-deer-rhyme.md

@@ -0,0 +1,6 @@
+---
+'@backstage/frontend-plugin-api': patch
+'@backstage/frontend-app-api': patch
+---
+
+Add optional `description` field to plugin-level feature flags.

packages/frontend-app-api/src/wiring/createSpecializedApp.tsx

@@ -357,6 +357,7 @@ export function createSpecializedApp(options?: CreateSpecializedAppOptions): {
         OpaqueFrontendPlugin.toInternal(feature).featureFlags.forEach(flag =>
           featureFlagApi.registerFlag({
             name: flag.name,
+            description: flag.description,
             pluginId: feature.id,
           }),
         );
@@ -365,6 +366,7 @@ export function createSpecializedApp(options?: CreateSpecializedAppOptions): {
         toInternalFrontendModule(feature).featureFlags.forEach(flag =>
           featureFlagApi.registerFlag({
             name: flag.name,
+            description: flag.description,
             pluginId: feature.pluginId,
           }),
         );

packages/frontend-plugin-api/src/wiring/types.ts

@@ -29,6 +29,7 @@ import { FrontendPlugin } from './createFrontendPlugin';
 export type FeatureFlagConfig = {
   /** Feature flag name */
   name: string;
+  description?: string;
 };
 
 /** @public */