simplify project-dir-utils.ts

apps/app/src/server/util/project-dir-utils.ts

@@ -1,13 +1,7 @@
-import fs from 'node:fs';
 import path from 'node:path';
 import process from 'node:process';
-import { isServer } from '@growi/core/dist/utils/browser-utils';
 
-const isCurrentDirRoot = isServer() && fs.existsSync('./.next');
-
-export const projectRoot = isCurrentDirRoot
-  ? process.cwd()
-  : path.resolve(__dirname, '../../');
+export const projectRoot = process.cwd();
 
 export function resolveFromRoot(relativePath: string): string {
   return path.resolve(projectRoot, relativePath);