Fix error when trying to scroll to an invalid field

packages/client/src/components/app/forms/InnerForm.svelte

@@ -423,11 +423,15 @@
     }
     const fieldId = field.fieldState.fieldId
     const fieldElement = document.getElementById(fieldId)
+    if (fieldElement) {
       fieldElement.focus({ preventScroll: true })
+    }
     const label = document.querySelector(`label[for="${fieldId}"]`)
+    if (label) {
       label.style.scrollMargin = "100px"
       label.scrollIntoView({ behavior: "smooth", block: "nearest" })
     }
+  }
 
   // Action context to pass to children
   const actions = [