Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- `app/controllers/api/v1/statuses_controller.rb`:
  Conflict due to upstream adding a new parameter (with_rate_limit),
  too close to glitch-soc's own additional parameter (content_type).
  Added upstream's parameter.
- `app/services/post_status_service.rb`:
  Conflict due to upstream adding a new parameter (rate_limit),
  too close to glitch-soc's own additional parameter (content_type).
  Added upstream's parameter.
- `app/views/settings/preferences/appearance/show.html.haml`:
  Conflict due to us not exposing theme settings here (as we have
  a different flavour/skin menu).
  Took upstream change, while still not exposing theme settings.
- `config/webpack/shared.js`:
  Coding style fixes for a part we have rewritten.
  Discarded upstream changes.

app/controllers/api/v1/timelines/home_controller.rb

@@ -5,8 +5,6 @@ class Api::V1::Timelines::HomeController < Api::BaseController
   before_action :require_user!, only: [:show]
   after_action :insert_pagination_headers, unless: -> { @statuses.empty? }
 
-  respond_to :json
-
   def show
     @statuses = load_statuses
 

app/controllers/api/v1/timelines/public_controller.rb

@@ -4,8 +4,6 @@ class Api::V1::Timelines::PublicController < Api::BaseController
   before_action :require_user!, only: [:show], if: :require_auth?
   after_action :insert_pagination_headers, unless: -> { @statuses.empty? }
 
-  respond_to :json
-
   def show
     @statuses = load_statuses
     render json: @statuses, each_serializer: REST::StatusSerializer, relationships: StatusRelationshipsPresenter.new(@statuses, current_user&.account_id)

app/controllers/api/v1/timelines/tag_controller.rb

@@ -4,8 +4,6 @@ class Api::V1::Timelines::TagController < Api::BaseController
   before_action :load_tag
   after_action :insert_pagination_headers, unless: -> { @statuses.empty? }
 
-  respond_to :json
-
   def show
     @statuses = load_statuses
     render json: @statuses, each_serializer: REST::StatusSerializer, relationships: StatusRelationshipsPresenter.new(@statuses, current_user&.account_id)