Change DropZone page title to sentence case

- Update name field from 'DropZone' to 'Drop zone'

Author: Stephanie Ordaz

packages/ui-extensions/src/docs/shared/components/DropZone.ts

@@ -1,7 +1,7 @@
 import type {SharedReferenceEntityTemplateSchema} from '../docs-type';
 
 const data: SharedReferenceEntityTemplateSchema = {
-  name: 'DropZone',
+  name: 'Drop zone',
   description:
     'The drop zone component lets users upload files through drag-and-drop or by clicking to browse. Use for file uploads such as images, documents, or CSV imports.\n\nRestrict accepted file types with the `accept` property, and handle uploads and validation errors by listening for `change` and `droprejected` events.',
   category: 'Polaris web components',