feat: use emacs android prefix for packages as well as termux

Since I cannot get termux working now, I have compiled
packages from termux with this pewfix for emacs...

feat: move csharp yasnippet functions to separate file

fix: show also warnings, fix two outstanding warnings

fix: use system-type, not window-system, it's nil for daemon

fix: no symlink mode for windows

feat: add android setup

feat: consult-ripgrep-all

chore: move elpaca to elpaca-loader

chore: split to more el files