Add removeInvitation to the invitation screen

src/services/app.ts

@@ -67,6 +67,7 @@ export class AppService extends EventEmitter<AppEventMap> {
     {
       onUpdated: (invitation: XOInvitation) => void;
       onStatusChanged: (status: string) => void;
+      onRemoved: () => void;
     }
   >();
 
@@ -241,13 +242,25 @@ export class AppService extends EventEmitter<AppEventMap> {
         invitationIdentifier,
       });
     };
+    const onRemoved = () => {
+      this.detachInvitationListeners(invitationIdentifier);
+      this.invitations.splice(this.invitations.indexOf(invitation), 1);
+      this.bumpInvitationRevision(invitationIdentifier);
+      this.emit("invitation-removed", invitation);
+      this.emit("wallet-state-changed", {
+        reason: "invitation-removed",
+        invitationIdentifier: invitationIdentifier,
+      });
+    };
 
     invitation.on("invitation-updated", onUpdated);
     invitation.on("invitation-status-changed", onStatusChanged);
+    invitation.on("invitation-removed", onRemoved);
 
     this.invitationEventCleanup.set(invitationIdentifier, {
       onUpdated,
       onStatusChanged,
+      onRemoved,
     });
   }