tsk-79: Create function to generate CoverArt filename (#80)

Closes #79

Reviewed-on: #80
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

src/song.rs

@@ -129,14 +129,12 @@ impl Song {
     }
 }
 
-/// Generates a filename. In order to save a song to the filesystem, the song must have
-/// a directory and filename
+/// Generates a filename. In order to save a song to the filesystem
 pub fn generate_filename(typ: types::MusicTypes, randomize: bool) -> String {
     let file_extension = match typ {
         types::MusicTypes::DefaultMusicExtension => {
             String::from(constants::file_extensions::audio::DEFAULTMUSICEXTENSION)
         }
-
         types::MusicTypes::WavExtension => {
             String::from(constants::file_extensions::audio::WAVEXTENSION)
         }