Move to websocket for requests to signal server

ts/groups/joinViaLink.ts

@@ -14,6 +14,7 @@ import {
 import * as Bytes from '../Bytes';
 import { longRunningTaskWrapper } from '../util/longRunningTaskWrapper';
 import { isGroupV1 } from '../util/whatTypeOfConversation';
+import { explodePromise } from '../util/explodePromise';
 
 import type { ConversationAttributesType } from '../model-types.d';
 import type { ConversationModel } from '../models/conversations';
@@ -175,7 +176,7 @@ export async function joinViaLink(hash: string): Promise<void> {
   };
 
   // Explode a promise so we know when this whole join process is complete
-  const { promise, resolve, reject } = explodePromise();
+  const { promise, resolve, reject } = explodePromise<void>();
 
   const closeDialog = async () => {
     try {
@@ -405,26 +406,3 @@ function showErrorDialog(description: string, title: string) {
     },
   });
 }
-
-function explodePromise(): {
-  promise: Promise<void>;
-  resolve: () => void;
-  reject: (error: Error) => void;
-} {
-  let resolve: () => void;
-  let reject: (error: Error) => void;
-
-  const promise = new Promise<void>((innerResolve, innerReject) => {
-    resolve = innerResolve;
-    reject = innerReject;
-  });
-
-  return {
-    promise,
-    // Typescript thinks that resolve and reject can be undefined here.
-    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-    resolve: resolve!,
-    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-    reject: reject!,
-  };
-}