feat: Implement WordPress publishing and unpublishing actions

- Added conditional visibility for table actions based on content state (published/draft).
- Introduced `publishContent` and `unpublishContent` API functions for handling WordPress integration.
- Updated `Content` component to manage publish/unpublish actions with appropriate error handling and success notifications.
- Refactored `PostEditor` to remove deprecated SEO fields and consolidate taxonomy management.
- Enhanced `TablePageTemplate` to filter row actions based on visibility conditions.
- Updated backend API to support publishing and unpublishing content with proper status updates and external references.

frontend/src/templates/TablePageTemplate.tsx

@@ -1012,7 +1012,9 @@ export default function TablePageTemplate({
                                       placement="right"
                                       className="w-48 p-2"
                                     >
-                                      {rowActions.map((action) => {
+                                      {rowActions
+                                        .filter((action) => !action.shouldShow || action.shouldShow(row))
+                                        .map((action) => {
                                         const isEdit = action.key === 'edit';
                                         const isDelete = action.key === 'delete';
                                         const isExport = action.key === 'export';