chore: remove duplicated is_idle function

Author: ynqa

src/processor/monitor.rs

@@ -13,11 +13,6 @@ impl ContextMonitor {
     pub fn new(shared: Arc<Mutex<Context>>) -> Self {
         Self { shared }
     }
-
-    pub async fn is_idle(&self) -> bool {
-        let context = self.shared.lock().await;
-        context.state == State::Idle
-    }
 }
 
 impl spinner::State for ContextMonitor {

src/prompt.rs

@@ -17,7 +17,7 @@ use promkit_widgets::{
         grapheme::StyledGraphemes,
         render::{Renderer, SharedRenderer},
     },
-    spinner::{self, Spinner},
+    spinner::{self, Spinner, State},
     status::{self, Severity},
 };
 use tokio::{