Refactoring (#31)

* Refactoring code

* Code formatting

* More changes

* Moved to icarus-models::user

* Some refactoring

* Updated icarus-models

* Removing constants

* Replaced with icarus-models constants

* Formatting

* Switched to constants from icarus-models:

* Replaced Token with AccessToken from icarus-models

* Updated icarus-models

* Formatting

* Removing code

src/syncers/delete.rs

@@ -20,7 +20,7 @@ impl Default for Delete {
 impl Delete {
     pub async fn delete_song(
         &mut self,
-        token: &models::token::Token,
+        token: &icarus_models::token::AccessToken,
         song: &models::song::Song,
     ) -> Result<models::song::Song, std::io::Error> {
         self.api.endpoint = "song/data/delete".to_owned();