Clean up empty HTML and help text in form inputs (#700)

* Clean up empty HTML and help text in form inputs

* Update api/app/Http/Requests/UserFormRequest.php

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

---------

Co-authored-by: Julien Nahum <julien@nahum.net>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

client/components/forms/RichTextAreaInput.client.vue

@@ -95,6 +95,14 @@ const emit = defineEmits(['update:modelValue'])
 const { compVal, inputStyle, hasError, inputWrapperProps } = useFormInput(props, { emit })
 const editor = ref(null)
 const mentionState = ref(null)
+
+// Add this watch to clean up empty HTML content
+watch(compVal, (val) => {
+  if (val && val.replace(/<[^>]*>/g, '').trim() === '') {
+    compVal.value = null
+  }
+}, { immediate: true })
+
 // Move the mention extension registration to onMounted
 
 if (props.enableMentions && !Quill.imports['blots/mention']) {