Revert "enterprise: Quit app after showing error for invalid global config."

This reverts commit 51ff949d34.

It incorrectly uses a main-only API in app/common, which is shared
between the main and renderer processes.

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

app/common/enterprise-util.ts

@@ -1,4 +1,3 @@
-import {app} from "electron/main";
 import fs from "node:fs";
 import path from "node:path";
 import process from "node:process";
@@ -48,11 +47,6 @@ function reloadDatabase(): void {
       );
       logger.log("Error while JSON parsing global_config.json: ");
       logger.log(error);
-      // This function is called multiple times throughout the
-      // codebase, making the above dialog.showErrorBox appear
-      // multiple times and then leading to a non-working app.
-      // It might be better to quit the app instead.
-      app.quit();
     }
   } else {
     configFile = false;