Fix argument handling with spaces in neu run

[rahulptl165]

Fixes #279

Description:

This PR addresses an issue in the Neutralinojs CLI where arguments containing spaces (e.g., file paths) were being split into multiple parameters. This is particularly problematic when using the neu run command with arguments like --file="path with spaces.txt", which were incorrectly processed into separate arguments.

Changes Made:

• Modified the argument parsing logic in the run.js file to properly handle parameters with spaces.
• Ensured that all arguments after -- are treated as a single string, preserving spaces where needed.

How It Works:

• The PR introduces logic to properly join the arguments passed after -- into a single string, ensuring that the entire argument, including paths with spaces, is passed correctly to the application.

Test:

• Created a test Neutralinojs project and used the following command to verify that arguments with spaces are handled correctly.

• my input

neu run -- --file="path with spaces.txt"

• outcome

neu: INFO Starting process: neutralino-win_x64.exe  --load-dir-res --path=. --export-auth-info --neu-dev-extension --neu-dev-auto-reload 
"--file=path with spaces.txt"
neu: INFO neu CLI connected with the application.