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

lisp/init-org.el

@@ -247,6 +247,9 @@ See `org-capture-templates' for more information."
                      (file+headline "~/org/hugo/this-is-my-blog/all-blog.org" "Blog Ideas")
                      (function org-hugo-new-subtree-post-capture-template))))))
 
+;; presentation
+(use-package org-tree-slide)
+
 ;; 农历日历
 (use-package cal-china-x
   :after calendar