Fix: pattern rendering issue (#66022)

When navigating between the "All Patterns" tab (specifically on page 2) and the "Template Parts" tab, the patterns fail to load correctly, and a "No Results" message is displayed. This commit checks for a previous post type, and, if different, resets the pagination to page 1 to ensure the first page of new post types are shown.

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Co-authored-by: dhruvang21 <dhruvang21@git.wordpress.org>
Co-authored-by: ramonjd <ramonopoly@git.wordpress.org>
Co-authored-by: talldan <talldanwp@git.wordpress.org>

packages/edit-site/src/components/page-patterns/index.js

@@ -78,6 +78,7 @@ export default function DataviewsPatterns() {
 	const categoryId = categoryIdFromURL || PATTERN_DEFAULT_CATEGORY;
 	const [ view, setView ] = useState( DEFAULT_VIEW );
 	const previousCategoryId = usePrevious( categoryId );
+	const previousPostType = usePrevious( type );
 	const viewSyncStatus = view.filters?.find(
 		( { field } ) => field === 'sync-status'
 	)?.value;
@@ -121,10 +122,10 @@ export default function DataviewsPatterns() {
 
 	// Reset the page number when the category changes.
 	useEffect( () => {
-		if ( previousCategoryId !== categoryId ) {
+		if ( previousCategoryId !== categoryId || previousPostType !== type ) {
 			setView( ( prevView ) => ( { ...prevView, page: 1 } ) );
 		}
-	}, [ categoryId, previousCategoryId ] );
+	}, [ categoryId, previousCategoryId, previousPostType, type ] );
 	const { data, paginationInfo } = useMemo( () => {
 		// Search is managed server-side as well as filters for patterns.
 		// However, the author filter in template parts is done client-side.