Revert navigation labels to original values

- Changed back to 'Document List', 'Document KB', 'Document Analytics', 'Upload Document(s)'
- Avoid breaking existing screenshots, demo videos, workshops, and documentation
- Navigation label changes have significant ripple effects across all materials

Author: EC2 Default User

src/ui/src/components/genaiidp-layout/navigation.jsx

@@ -16,10 +16,10 @@ import {
 
 export const documentsNavHeader = { text: 'Tools', href: `#${DEFAULT_PATH}` };
 export const documentsNavItems = [
-  { type: 'link', text: 'My Documents', href: `#${DOCUMENTS_PATH}` },
-  { type: 'link', text: 'Ask Questions', href: `#${DOCUMENTS_KB_QUERY_PATH}` },
-  { type: 'link', text: 'Analytics Dashboard', href: `#${DOCUMENTS_ANALYTICS_PATH}` },
-  { type: 'link', text: 'Upload Files', href: `#${UPLOAD_DOCUMENT_PATH}` },
+  { type: 'link', text: 'Document List', href: `#${DOCUMENTS_PATH}` },
+  { type: 'link', text: 'Document KB', href: `#${DOCUMENTS_KB_QUERY_PATH}` },
+  { type: 'link', text: 'Document Analytics', href: `#${DOCUMENTS_ANALYTICS_PATH}` },
+  { type: 'link', text: 'Upload Document(s)', href: `#${UPLOAD_DOCUMENT_PATH}` },
   { type: 'link', text: 'View/Edit Configuration', href: `#${CONFIGURATION_PATH}` },
   {
     type: 'section',