Replace remote wrapper module with Vite alias.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

vite.config.ts

@@ -1,3 +1,5 @@
+/* eslint-disable @typescript-eslint/naming-convention */
+
 import * as path from "node:path";
 
 import {defineConfig} from "vite";
@@ -37,6 +39,11 @@ export default defineConfig({
             },
             ssr: true,
           },
+          resolve: {
+            alias: {
+              "zulip:remote": "electron/main",
+            },
+          },
         },
       },
       {
@@ -82,6 +89,11 @@ export default defineConfig({
               external: ["electron", /^electron\//, "@yaireo/tagify"],
             },
           },
+          resolve: {
+            alias: {
+              "zulip:remote": "@electron/remote",
+            },
+          },
         },
       },
     ]),