chore: added changeset

Signed-off-by: blam <ben@blam.sh>

.changeset/forty-ties-agree.md

@@ -0,0 +1,18 @@
+---
+'@backstage/frontend-plugin-api': patch
+---
+
+Added a new `IconBundleBlueprint` that lets you create icon bundle extensions that can be installed in an App in order to override or add new app icons.
+
+```tsx
+import { IconBundleBlueprint } from '@backstage/frontend-plugin-api';
+
+const exampleIconBundle = IconBundleBlueprint.make({
+  name: 'example-bundle',
+  params: {
+    icons: {
+      user: MyOwnUserIcon,
+    },
+  },
+});
+```

.changeset/forty-ties-disagree.md

@@ -0,0 +1,5 @@
+---
+'@backstage/frontend-app-api': patch
+---
+
+Support icon overriding with the new `IconBundleBlueprint` API.