fix redirect errors

Author: devalog

fern/docs.yml

@@ -671,13 +671,7 @@ redirects:
     destination: /learn/sdks/generators/typescript/publishing
     permanent: true
   - source: /learn/sdks/generators/java/adding-custom-code
-    destination: /learn/sdks/generators/java/overview
-    permanent: true
-  - source: /learn/sdks/generators/go/custom-code
-    destination: /learn/sdks/generators/go/overview
-    permanent: true
-  - source: /learn/sdks/generators/java/custom-code
-    destination: /learn/sdks/generators/java/overview
+    destination: /learn/sdks/generators/java/custom-code
     permanent: true
   - source: /learn/sdks/reference/configuration
     destination: /learn/sdks/reference/generators-yml
@@ -702,15 +696,9 @@ redirects:
   - source: /learn/docs/api-references/api-explorer/advanced-configuration
     destination: /learn/docs/api-references/api-explorer/overview
     permanent: true
-  - source: /learn/docs/developer-tools/gitlab
-    destination: /learn/docs/developer-tools/gitlab
-    permanent: true
   - source: /learn/docs/enterprise/self-hosted
     destination: /learn/docs/self-hosted/overview
     permanent: true
-  - source: /learn/docs/integrations/feature-flags
-    destination: /learn/docs/integrations/feature-flags
-    permanent: true
   - source: /learn/docs/content/visual-editor-beta
     destination: /learn/docs/writing-content/fern-editor
     permanent: true
@@ -759,25 +747,25 @@ redirects:
     destination: /learn/api-definitions/openapi/overview
     permanent: true
   - source: /learn/api-definitions/ferndef/web-sockets
-    destination: /learn/api-definitions/ferndef/endpoints/websockets
+    destination: /learn/api-definitions/ferndef/websockets
     permanent: true
   - source: /learn/api-definitions/grpc/extensions/server-name
-    destination: /learn/api-definitions/overview/overrides
+    destination: /learn/api-definitions/grpc/servers
     permanent: true
   - source: /learn/api-definitions/grpc/extensions/timeout
-    destination: /learn/api-definitions/overview/overrides
+    destination: /learn/api-definitions/grpc/overview
     permanent: true
   - source: /learn/api-definitions/asyncapi/extensions/server-name
-    destination: /learn/api-definitions/overview/overrides
+    destination: /learn/api-definitions/asyncapi/extensions/server-names
     permanent: true
   - source: /learn/api-definitions/openrpc/extensions/sdk-group-name
-    destination: /learn/api-definitions/overview/overrides
+    destination: /learn/api-definitions/openrpc/extensions/sdk-group-names
     permanent: true
   - source: /learn/api-definitions/openrpc/extensions/examples
     destination: /learn/api-definitions/openrpc/examples
     permanent: true
   - source: /learn/api-definitions/openrpc/extensions/retry
-    destination: /learn/api-definitions/openrpc/extensions/overview
+    destination: /learn/api-definitions/openrpc/extensions/retry-behavior
     permanent: true
   - source: /learn/overview/define-your-api/openapi/extensions
     destination: /learn/api-definitions/openapi/extensions/overview
@@ -823,6 +811,3 @@ redirects:
   - source: /learn/cli-reference/path/to/file.pdf
     destination: /learn/cli-api-reference/cli-reference/overview
     permanent: true
-  - source: /learn/user-feedback
-    destination: /learn/docs/customization/user-feedback
-    permanent: true