Auto-expand collapsible sections if containing error

For #1693

resources/js/components/collapsible.js

@@ -12,8 +12,8 @@ class Collapsible {
         this.content = elem.querySelector('[collapsible-content]');
 
         if (!this.trigger) return;
-
         this.trigger.addEventListener('click', this.toggle.bind(this));
+        this.openIfContainsError();
     }
 
     open() {
@@ -36,6 +36,13 @@ class Collapsible {
         }
     }
 
+    openIfContainsError() {
+        const error = this.content.querySelector('.text-neg');
+        if (error) {
+            this.open();
+        }
+    }
+
 }
 
 export default Collapsible;