Delayed event management: split endpoints, no auth (#31183)

* Delayed event management: split endpoints, no auth

Use the new js-sdk client methods for calling the dedicated,
unauthenticated endpoints for each of the cancel/restart/send actions
for updating a delayed event.

Note that these methods are compatible with homeservers that support
only the original endpoint where the update action is in the request
body.

* REPLACEME: pull in dependant js-sdk branch

see matrix-org/matrix-js-sdk#5066

* Format with Prettier

* Update matrix-js-sdk

package.json

@@ -132,7 +132,7 @@
         "matrix-encrypt-attachment": "^1.0.3",
         "matrix-events-sdk": "0.0.1",
         "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
-        "matrix-widget-api": "^1.10.0",
+        "matrix-widget-api": "^1.14.0",
         "memoize-one": "^6.0.0",
         "mime": "^4.0.4",
         "oidc-client-ts": "^3.0.1",