Fix FAQ expanders and quote form JavaScript

- Fix FAQ accordion: change from display:none to max-height animation
- Add .active class selectors alongside [aria-expanded="true"]
- Fix quote.php: add missing closing brackets for event listeners
- Fix Promise chain indentation in quote form submission

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

quote.php

@@ -966,13 +966,15 @@ $breadcrumbs = [
                                 showMessage('error', 'There was a problem with your submission:', errorMessages);
                             }
                         })
-                .catch(error => {
-                    console.error('Error:', error);
-                    showMessage('error', 'Connection Error', 'There was an error sending your quote request. Please check your internet connection and try again, or contact us directly at info@ukdataservices.co.uk');
-                })
-                .finally(() => {
-                    submitButton.textContent = originalText;
-                    submitButton.disabled = false;
+                        .catch(error => {
+                            console.error('Error:', error);
+                            showMessage('error', 'Connection Error', 'There was an error sending your quote request. Please check your internet connection and try again, or contact us directly at info@ukdataservices.co.uk');
+                        })
+                        .finally(() => {
+                            submitButton.textContent = originalText;
+                            submitButton.disabled = false;
+                        });
+                    });
                 });
             });
         });