ci: add test workflow and fix code quality issues

- Add CI test job with Emacs batch load and byte-compile
- Fix settings-file variable check in init.el
- Fix extra parenthesis in init-neotree.el
- Add missing projectile dependencies in neotree and web-mode
- Fix add-hook usage in init-icons.el
- Add hydra dependency in init-ivy.el
- Standardize header style in init-company.el

modules/init-ivy.el

@@ -32,6 +32,7 @@
 ;; hydra
 (use-package hydra
   :pin "MELPA"
+  :after ivy
   :config (hydra-add-font-lock))
 
 (use-package swiper