Add webpush front-end support

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/src/graphql/webPush.ts

@@ -0,0 +1,13 @@
+import gql from "graphql-tag";
+
+export const REGISTER_PUSH_MUTATION = gql`
+  mutation RegisterPush($endpoint: String!, $auth: String!, $p256dh: String!) {
+    registerPush(endpoint: $endpoint, auth: $auth, p256dh: $p256dh)
+  }
+`;
+
+export const UNREGISTER_PUSH_MUTATION = gql`
+  mutation UnRegisterPush($endpoint: String!) {
+    unregisterPush(endpoint: $endpoint)
+  }
+`;