refactor: code style, build, and ci (#13)

* feat(build): remove build.zsh in favor of autotools 
* fix(makefile): add `uninstall` target
* fix(docs): add `zinit` install snippet
* fix(makefile): docs & cleanup
* maint: update log messages
* maint: format zsh code

Signed-off-by: Vladislav Doster <mvdoster@gmail.com>

Author: vladdoster