Use synchronous IPC for passing config

ts/util/url.ts

@@ -1,8 +1,6 @@
 // Copyright 2021 Signal Messenger, LLC
 // SPDX-License-Identifier: AGPL-3.0-only
 
-import { mapValues } from 'lodash';
-
 export function maybeParseUrl(value: string): undefined | URL {
   if (typeof value === 'string') {
     try {
@@ -20,9 +18,13 @@ export function setUrlSearchParams(
   searchParams: Readonly<Record<string, unknown>>
 ): URL {
   const result = cloneUrl(url);
-  result.search = new URLSearchParams(
-    mapValues(searchParams, stringifySearchParamValue)
-  ).toString();
+  result.search = '';
+  for (const [key, value] of Object.entries(searchParams)) {
+    if (value == null) {
+      continue;
+    }
+    result.searchParams.append(key, String(value));
+  }
   return result;
 }
 
@@ -30,10 +32,6 @@ function cloneUrl(url: Readonly<URL>): URL {
   return new URL(url.href);
 }
 
-function stringifySearchParamValue(value: unknown): string {
-  return value == null ? '' : String(value);
-}
-
 export function urlPathFromComponents(
   components: ReadonlyArray<string>
 ): string {