Fix installationdescription not working (#1525)

* Revise Debian installation guide and dependencies

Updated installation instructions for Debian, including Node.js and npm requirements, and modified package installation command.

* Update installation guide for Debian systems

Clarified installation instructions for Debian-based systems.

Author: flacoonb

docs/install/install-debian.md

@@ -15,6 +15,25 @@ sudo apt update
 sudo apt dist-upgrade
 ```
 
+## Install Node.js & npm
+
+Photobooth requires:
+
+- **Node.js ≥ 20.15.0**
+- **npm ≥ 10.7.0**
+
+Install Node.js and npm from the official NodeSource repository:
+
+```
+curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -
+sudo apt install -y nodejs
+```
+Verify
+```
+node -v
+npm -v
+```
+
 ## Install a Webserver
 
 Currently NGINX and Apache Webserver are supported.
@@ -38,7 +57,7 @@ sudo apt install -y nginx php-fpm
 ## Install dependencies
 
 ```
-sudo apt install -y curl gcc g++ make git ffmpeg gphoto2 libimage-exiftool-perl nodejs php-xml php-gd php-zip php-mbstring python3 python3-gphoto2 python3-psutil python3-zmq rsync udisks2 v4l2loopback-dkms v4l-utils
+sudo apt install -y curl gcc g++ make git ffmpeg gphoto2 libimage-exiftool-perl php-xml php-gd php-zip php-mbstring python3 python3-gphoto2 python3-psutil python3-zmq rsync udisks2 v4l2loopback-dkms v4l-utils
 ```
 
 **Optional:** If you have a new camera, you can also install the latest version of libgphoto2 directly from the maintainer. Choose "Install last stable release":