fix: Add is_auto_sync_paused to Config; remove unused import

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

src/config.rs

@@ -64,6 +64,10 @@ impl Config {
             Self::default()
         })
     }
+
+    pub fn is_auto_sync_paused(&self) -> bool {
+        self.timeturner_offset.is_active()
+    }
 }
 
 impl Default for Config {