Merge branch 'feature/instance-thumbnail-api' into 'develop'

Provide instance thumbnail in /api/v1/instance

See merge request !55

lib/pleroma/web/endpoint.ex

@@ -12,7 +12,7 @@ defmodule Pleroma.Web.Endpoint do
     at: "/media", from: "uploads", gzip: false
   plug Plug.Static,
     at: "/", from: :pleroma,
-    only: ~w(index.html static finmoji emoji packs sounds sw.js)
+    only: ~w(index.html static finmoji emoji packs sounds instance sw.js)
 
   # Code reloading can be explicitly enabled under the
   # :code_reloader configuration of your endpoint.

lib/pleroma/web/mastodon_api/mastodon_api_controller.ex

@@ -103,6 +103,7 @@ def masto_instance(conn, _params) do
         streaming_api: String.replace(Web.base_url, ["http","https"], "wss")
       },
       stats: Stats.get_stats,
+      thumbnail: Web.base_url <> "/instance/thumbnail.jpeg",
       max_toot_chars: Keyword.get(@instance, :limit)
     }