fix: resolve bad auto-merge syntax error in app.js

Author: devanshi14malhotra

frontend/js/app.js

@@ -1393,9 +1393,6 @@ class BookRenderer {
                     showError(`Failed to fetch mood analysis (Server error: ${res.status}).`);
                 }
             }
-        } catch (err) {
-                }
-            }
         } catch (err) {
             console.error('Failed to explore book mood:', err);
             showError('Network error connecting to mood analysis service.');