Make timezone configurable

config/config.exs

@@ -15,7 +15,10 @@ config :music_library,
   ecto_repos: [MusicLibrary.Repo, MusicLibrary.ErrorRepo],
   generators: [timestamp_type: :utc_datetime, binary_id: true]
 
-config :music_library, MusicLibraryWeb, login_password: "change me", api_token: "change me"
+config :music_library, MusicLibraryWeb,
+  login_password: "change me",
+  api_token: "change me",
+  timezone: "Europe/London"
 
 # Configures the endpoint
 config :music_library, MusicLibraryWeb.Endpoint,

config/runtime.exs

@@ -32,6 +32,10 @@ if openai_key = System.get_env("OPENAI_KEY") do
   config :music_library, OpenAI, api_key: openai_key
 end
 
+if timezone = System.get_env("TIMEZONE") do
+  config :music_library, :timezone, timezone
+end
+
 config :music_library, MusicLibrary.Repo,
   load_extensions: [
     MusicLibrary.Repo.extension_path("unicode")