chore: Update cursive to 0.21.0

* Update cursive to 0.21.0

* Inject TERM=xterm in CI to help build ncurses backend

src/application.rs

@@ -44,7 +44,6 @@ pub fn setup_logging(filename: &Path) -> Result<(), fern::InitError> {
         .level(log::LevelFilter::Trace)
         // Set runtime log level for modules
         .level_for("librespot", log::LevelFilter::Debug)
-        .level_for("cursive_buffered_backend", log::LevelFilter::Debug)
         // Output to stdout, files, and other Dispatch configurations
         .chain(fern::log_file(filename)?)
         // Apply globally

src/ext_traits.rs

@@ -29,7 +29,7 @@ pub trait SelectViewExt {
     fn handle_command(&mut self, cmd: &Command) -> Result<CommandResult, String>;
 }
 
-impl<T: 'static> SelectViewExt for cursive::views::SelectView<T> {
+impl<T: Send + Sync + 'static> SelectViewExt for cursive::views::SelectView<T> {
     fn handle_command(&mut self, cmd: &Command) -> Result<CommandResult, String> {
         match cmd {
             Command::Move(mode, amount) => {

src/ui/contextmenu.rs

@@ -375,7 +375,7 @@ impl ViewExt for SelectArtistActionMenu {
     }
 }
 
-fn handle_move_command<T: 'static>(
+fn handle_move_command<T: Send + Sync + 'static>(
     sel: &mut Modal<Dialog>,
     s: &mut Cursive,
     cmd: &Command,

src/ui/mod.rs

@@ -26,8 +26,7 @@ pub mod cover;
 /// Create a CursiveRunner which implements the drawing logic and event loop.
 pub fn create_cursive() -> Result<CursiveRunner<Cursive>, Box<dyn std::error::Error>> {
     let backend = cursive::backends::try_default()?;
-    let buffered_backend = Box::new(cursive_buffered_backend::BufferedBackend::new(backend));
-    let mut cursive_runner = CursiveRunner::new(cursive::Cursive::new(), buffered_backend);
+    let mut cursive_runner = CursiveRunner::new(cursive::Cursive::new(), backend);
 
     cursive_runner.set_window_title(BIN_NAME);