message: Switch to `String`
diff: @@ -236,10 +236,10 @@ pub const DEFAULT_PAGINATION_CHUNKS: u32 = 50;
  #[derive(Debug, Clone)]
  pub struct Config {
  /// The Spotify API prefix, [`DEFAULT_API_PREFIX`] by default.
  - pub api_base_url: &'static str,
  + pub api_base_url: String,
  /// The Spotify Authentication prefix, [`DEFAULT_AUTH_PREFIX`] by default.
  - pub auth_base_url: &'static str,
  + pub auth_base_url: String,
  /// The cache file path, in case it's used. By default it's
  /// [`DEFAULT_CACHE_PATH`]
  @@ -267,8 +267,8 @@ pub struct Config {
  impl Default for Config {
  fn default() -> Self {
  Self {
  - api_base_url: DEFAULT_API_BASE_URL,
  - auth_base_url: DEFAULT_AUTH_BASE_URL,
  + api_base_url: String::from(DEFAULT_API_BASE_URL),
  + auth_base_url: String::from(DEFAULT_AUTH_BASE_URL),
  cache_path: PathBuf::from(DEFAULT_CACHE_PATH),
  pagination_chunks: DEFAULT_PAGINATION_CHUNKS,
  token_cached: false,
  