[form-builder] Pass BlockEditor description to DefaultFormField for rendering (#168)

Author: Thomas Drevon

packages/@sanity/form-builder/src/inputs/BlockEditor-slate/BlockEditor.js

@@ -280,9 +280,11 @@ export default class BlockEditor extends React.Component {
 
     const hasError = validation && validation.messages && validation.messages.length > 0
     const showLinkButton = this.customSpans.length > 0
+
     return (
       <FormField
         label={type.title}
+        description={type.description}
         labelFor={this._inputId}
         level={level}
         className={fullscreen ? styles.formFieldFullscreen : styles.formField}

packages/test-studio/schemas/blocks.js

@@ -11,6 +11,7 @@ export default {
     {
       name: 'defaults',
       title: 'Content',
+      description: 'Profound description of what belongs here',
       type: 'array',
       of: [
         {type: 'image', title: 'Image'},