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/my-base16-light-theme.el

@@ -34,6 +34,7 @@
      `(org-block-end-line ((,class (:foreground ,base01 :slant italic))))
      `(org-priority ((,class (:foreground ,green :weight bold))))
      `(org-checkbox ((,class (:foreground ,base0 :weight bold))))
+     `(org-dispatcher-highlight ((,class (:foreground "#6b561e" :background "#f0e6b8" :weight bold))))
      `(denote-journal-calendar ((,class (:foreground ,cyan :slant italic))))
      `(calendar-month-header ((,class (:foreground ,base0 :weight bold))))
      `(holiday ((,class (:underline (:style line :color ,yellow)))))