🩹(frontend) add computed_link_reach on PUT link-configuration

By default a document is "restricted", a restricted
document cannot have a role "editor" or "reader".
With inheritance, a child document could have a computed
link reach different than "restricted" though.

We pass the computed link reach when we update the
link role, to be sure if follows the parent computed
link reach.

CHANGELOG.md

@@ -38,6 +38,7 @@ and this project adheres to
 - 🐛(backend) allow editor to delete subpages #1296
 - 🐛(frontend) fix dnd conflict with tree and Blocknote #1328
 - 🐛(frontend) fix display bug on homepage #1332
+- 🐛link role update #1287
 
 ## [3.5.0] - 2025-07-31