frontends: use new EXIT_BACKEND_NOT_FOUND exit code: - new EXIT_BACKEND_NOT_FOUND (5) is used when frontend can't find backend with the bridge. It differs from EXIT_BRIDGE_ERROR (3) which is used when something went wrong when connecting to backend. - use this exit code in quick app and in jp

.. _contribuing:

===========
contribuing
===========

This part of the documentation is for people willing to contribute to the development of
Salut à Toi and its ecosystem, it is not needed to read this if you only plan to use the
software.

.. toctree::
   :glob:
   :maxdepth: 2

   testing