Merge pull request #33670 from backstage/rugvip/app-routes-redirect-config

plugin-app: add redirect config to app/routes extension

.changeset/app-routes-redirect-config.md

@@ -0,0 +1,17 @@
+---
+'@backstage/plugin-app': patch
+---
+
+Added support for configuring URL redirects on the `app/routes` extension. Redirects can be configured through `app-config` as an array of `{from, to}` path pairs, which will cause navigation to the `from` path to be redirected to the `to` path.
+
+For example:
+
+```yaml
+app:
+  extensions:
+    - app/routes:
+        config:
+          redirects:
+            - from: /old-path
+              to: /new-path
+```