undo priv_sid hacks

lib/pleroma/plugs/instance_static.ex

@@ -17,7 +17,7 @@ defmodule Pleroma.Plugs.InstanceStatic do
     if File.exists?(instance_path) do
       instance_path
     else
-      Path.join(Application.app_dir(:pleroma, "priv_sid/static/"), path)
+      Path.join(Application.app_dir(:pleroma, "priv/static/"), path)
     end
   end
 

lib/pleroma/web/endpoint.ex

@@ -23,7 +23,7 @@ defmodule Pleroma.Web.Endpoint do
   plug(
     Plug.Static,
     at: "/",
-    from: "priv_sid/static",
+    from: :pleroma,
     only:
       ~w(index.html robots.txt static finmoji emoji packs sounds images instance sw.js sw-pleroma.js favicon.png schemas doc)
     # credo:disable-for-previous-line Credo.Check.Readability.MaxLineLength