* fix: Debian dependencies in install.sh Fixes issue #102: Building on a fresh Debian installation in a VM with GNOME required additional dependencies for pip to install. pip fails with Meson submodule failing without cairo and girepository-2.0 development packages. Changes: - install.sh: Separated Debian packages from Ubuntu packages; selects Debian if found; otherwise same workflow for apt packages - docs/INSTALL.md: Separated Debian installation instructions from Ubuntu, updated package list. - src/vocalinux/main.py: Fixed comment indicating gir1.2-ayatana-appindicator3 is only for Debian 13- it's for Debian 11+ - CONTRIBUTING.md: Separated Debian installation instructions from Ubuntu, updated package list. * fix: fall back to Ayatana AppIndicator --------- Co-authored-by: Tanjera <ibi.keller@gmail.com>