Added container settings registration

Necessary to provide application wide access to the configuration which will soon be shared by the newly renamed requester and client (not implemented yet).

Milestone: minor

lib/trmnl/api/container.rb

@@ -10,6 +10,7 @@ module TRMNL
     module Container
       extend Containable
 
+      register(:settings) { TRMNL::API::Configuration::Loader.new.call }
       register(:requester) { API::Requester.new }
       register(:logger) { Cogger.new id: "trmnl-api", formatter: :json }
 

spec/support/shared_contexts/application_dependencies.rb

@@ -1,9 +1,17 @@
 # frozen_string_literal: true
 
 RSpec.shared_context "with application dependencies" do
-  let(:logger) { Cogger.new id: "trmnl-api", io: StringIO.new, level: :debug }
+  let :settings do
+    TRMNL::API::Configuration::Content[
+      content_type: "application/json",
+      uri: "https://trmnl.app/api"
+    ]
+  end
 
-  before { TRMNL::API::Container.stub! http:, logger: }
+  let(:logger) { Cogger.new id: "trmnl-api", io: StringIO.new, level: :debug }
+  let(:http) { class_spy HTTP }
+
+  before { TRMNL::API::Container.stub! settings:, http:, logger: }
 
   after { TRMNL::API::Container.restore }
 end