chore: improve public sample

Author: TeodorTaushanov

packages/website/docs/_components_pages/main/Popover.mdx

@@ -22,4 +22,7 @@ Note: if there is not enough space for the popup on the defined side, it will op
 <Placement />
 
 ### Resizable
+The Resizable sample demonstrates how the Popover component can be resized by dragging its edges.
+This allows users to adjust the popup's width and height interactively, providing greater flexibility for content display.
+
 <Resizable />

packages/website/docs/_samples/main/Popover/Resizable/sample.html

@@ -13,13 +13,13 @@
 
     <ui5-button id="popoverOpener">Open Popover</ui5-button>
 
-    <ui5-dialog id="popover" opener="popoverOpener" header-text="Resizable Popover" resizable>
+    <ui5-popover id="popover" opener="popoverOpener" header-text="Resizable Popover" resizable>
         <p>Resize this popover by dragging it by its resize handle.</p>
         <p>This feature is available only on Desktop.</p>
         <ui5-toolbar slot="footer">
             <ui5-toolbar-button class="popoverCloser" design="Emphasized" text="OK"></ui5-toolbar-button>
         </ui5-toolbar>
-    </ui5-dialog>
+    </ui5-popover>
     <!-- playground-fold -->
     <script type="module" src="main.js"></script>
 </body>