Use new accessors for VerificationRequest (#11092)

* Switch verification request accessors to go via CryptoApi

part of https://github.com/vector-im/crypto-internal/issues/97

* Update references to `requestVerification`

https://github.com/vector-im/crypto-internal/issues/98

src/components/views/settings/devices/useOwnDevices.ts

@@ -177,7 +177,7 @@ export const useOwnDevices = (): DevicesState => {
     const requestDeviceVerification =
         isCurrentDeviceVerified && userId
             ? async (deviceId: ExtendedDevice["device_id"]): Promise<VerificationRequest> => {
-                  return await matrixClient.requestVerification(userId, [deviceId]);
+                  return await matrixClient.getCrypto()!.requestDeviceVerification(userId, deviceId);
               }
             : undefined;