Added new item notification to postcodes following update.

Author: itsozz

data.html

@@ -241,10 +241,11 @@ <h2 class="cardHead themeBlockDark">Population estimates 2023</h2>
                         <p class="cardBody">Estimates of the usual resident population in Trafford during mid-2023 at local authority level only.</p>
                     </a>
 
-                    <a href="https://www.trafforddatalab.io/spatial_data/postcodes/" class="card themeBlockLight labBorder">
+                    <a href="https://www.trafforddatalab.io/spatial_data/postcodes/" class="card themeBlockLight labBorder notification">
                         <span class="filterTags"><!-- postcodes trafford greater manchester centroids electoral wards localities locality spatial geography geographies --></span>
                         <h2 class="cardHead themeBlockDark">Postcodes</h2>
                         <p class="cardBody">Postcode lists for Trafford and Greater Manchester by ward, <abbr title="Middle-layer Super Output Area">MSOA</abbr>, <abbr title="Lower-layer Super Output Area">LSOA</abbr> and locality (Trafford only) with centroids.</p>
+                        <span class="badge highContrastBlock" aria-label="This item is new" data-added="2025-03-11"><span aria-hidden="true">new</span></span>
                     </a>
 
                     <a href="https://www.trafforddatalab.io/open_data/census2021/religion/" class="card themeBlockLight labBorder">