Added library size to homepage (#264)

lib/pinchflat_web/controllers/pages/page_html.ex

@@ -1,5 +1,13 @@
 defmodule PinchflatWeb.Pages.PageHTML do
   use PinchflatWeb, :html
 
+  alias Pinchflat.Utils.NumberUtils
+
   embed_templates "page_html/*"
+
+  def readable_media_filesize(media_filesize) do
+    {num, suffix} = NumberUtils.human_byte_size(media_filesize, precision: 1)
+
+    "#{Float.round(num)} #{suffix}"
+  end
 end