Fix lib.rs state lifetime in setup zoom memory load

src-tauri/src/lib.rs

@@ -98,9 +98,11 @@ pub fn run() {
             #[cfg(desktop)]
             app.handle().plugin(tauri_plugin_global_shortcut::Builder::new().build())?;
 
+            // Load zoom memory from disk
             if let Ok(zoom_mem) = crate::persistence::load_json::<std::collections::HashMap<String, f64>>(app.handle(), "zoom_memory.json") {
-                let state = app.state::<AppState>();
-                if let Ok(mut tabs) = state.tabs.lock() {
+                if !zoom_mem.is_empty() {
+                    let app_state = app.state::<AppState>();
+                    let mut tabs = app_state.tabs.lock().expect("tabs lock");
                     tabs.zoom_memory = zoom_mem;
                 }
             }