CLI freezes on large projects due to recursive search in frontendlib.js

[SARTHAK2427]

Description

The CLI becomes unresponsive when running commands in projects with a large number of files inside the resources directory, this is caused by a recursive file scan in makeClientLibUrl which searches the entire directory tree to locate neutralino.js.

Steps to reproduce the delay

1. Initialize a new project:

neu create test-app
cd test-app

2. Simulate a large project structure:

mkdir resources/test-package
# On Windows (PowerShell):
for ($i=1; $i -le 10000; $i++) { New-Item -Path "resources/test-package/file_$i.txt" -ItemType "file" -Value "test" }

3. Run the application:

neu run

4. Observe the delay: You will notice a significant hang before the Neutralino window appears. This is because the CLI is recursively scanning all 10,000+ files to find neutralino.js, even though it is typically located in the root of the resources folder.

Expected Behavior:

• CLI should start almost instantly
• No noticeable delay regardless of file count

Actual Behavior:

• CLI freezes for several seconds before starting
• No output during the delay
• Time increases with number of files

I reproduced this issue on my system by generating ~10,000 files inside the resources directory using CMD and observed a 3-5 sec delay which can grow to minutes for larger projects