feat(base): Add magit-prime, org-tree-slide, pixel-scroll and eww config

- Install magit-prime package
- Add org-tree-slide with custom start/stop functions and keybindings
- Enable pixel-scroll-precision-mode
- Add basic eww configuration

init.el

@@ -20,10 +20,10 @@
       (require 'init-elpa)
       (require 'init-base)
       (require 'init-edit)
+      (require 'init-completion)
       (require 'init-package)
       (require 'init-org)
       (require 'init-prog)
-      (require 'init-completion)
       (require 'init-window)
       (require 'init-exwm)
       (require 'init-dired)