dev dependencies not mentionned

[toby-bro]

Describe the bug
When trying to compile from source the only dependencies mentionned by the doc are C and go compilers, and as you mentionned in #260 X11 and dbus. But that did not work.

To Reproduce
Steps to reproduce the behavior:

1. Clone repo on debian system
2. try and install it as in the doc

Screenshots

$ ./dev.sh build
Package xrandr was not found in the pkg-config search path.
Perhaps you should add the directory containing `xrandr.pc'
to the PKG_CONFIG_PATH environment variable
Package 'xrandr', required by 'virtual:world', not found
The package xrandr was not found on your system
The following build command failed: /home/jns/cloned-repos/kitty/dependencies/linux-amd64/bin/python setup.py develop
exit status 1

I mean only a few other packets are required

• libxrandr-dev
• libxinerama-dev
• libxcursor-dev
• libx11-xcb-dev At that stage the setup.py works
• libxi-dev for the C code to compile

Once they are added the dev.sh script works flawlessly. Could you please add these packets in the documentation, at least for debian based systems ?

Thank you very much for your impressive work !

Environment details
debian 12, X11 and wayland installed without dev dependencies but seemingly functionnal