Merge pull request #30813 from backstage/freben/advanced-options

Arrange most `create[Specialized]App` options into an `advanced` field

packages/frontend-plugin-api/src/wiring/createFrontendFeatureLoader.test.ts

@@ -46,7 +46,9 @@ function createTestAppRoot({
 }) {
   return createApp({
     features: [...features],
-    configLoader: async () => ({ config: mockApis.config({ data: config }) }),
+    advanced: {
+      configLoader: async () => ({ config: mockApis.config({ data: config }) }),
+    },
   }).createRoot();
 }
 

packages/frontend-plugin-api/src/wiring/createFrontendPlugin.test.ts

@@ -128,7 +128,9 @@ function createTestAppRoot({
 }) {
   return createApp({
     features: [...features],
-    configLoader: async () => ({ config: mockApis.config({ data: config }) }),
+    advanced: {
+      configLoader: async () => ({ config: mockApis.config({ data: config }) }),
+    },
   }).createRoot();
 }