:show_reactions, add CHANGELOG.md, refactor test

CHANGELOG.md

@@ -69,6 +69,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Added Pleroma.Upload.Filter.Exiftool as an alternate EXIF stripping mechanism targeting GPS/location metadata.
 - "By approval" registrations mode.
 - Configuration: Added `:welcome` settings for the welcome message to newly registered users.
+- Ability to hide favourites and emoji reactions in the API with `[:instance, :show_reactions]` config.
 
 <details>
   <summary>API Changes</summary>

test/web/pleroma_api/controllers/emoji_reaction_controller_test.exs

@@ -13,8 +13,6 @@ defmodule Pleroma.Web.PleromaAPI.EmojiReactionControllerTest do
 
   import Pleroma.Factory
 
-  setup do: clear_config([:instance, :show_reactions])
-
   test "PUT /api/v1/pleroma/statuses/:id/reactions/:emoji", %{conn: conn} do
     user = insert(:user)
     other_user = insert(:user)
@@ -109,7 +107,7 @@ test "GET /api/v1/pleroma/statuses/:id/reactions", %{conn: conn} do
   end
 
   test "GET /api/v1/pleroma/statuses/:id/reactions with :show_reactions disabled", %{conn: conn} do
-    Pleroma.Config.put([:instance, :show_reactions], false)
+    clear_config([:instance, :show_reactions], false)
 
     user = insert(:user)
     other_user = insert(:user)