[IMP] website: add spacing to Countdown snippet

Part of https://github.com/odoo/odoo/pull/46773
task-2191381

addons/website/views/snippets/s_countdown.xml

@@ -2,14 +2,14 @@
 <odoo>
 
 <template id="s_countdown" name="Countdown">
-    <section class="s_countdown"
+    <section class="s_countdown pt48 pb48"
         data-display="dhms" data-end-action="nothing" data-size="175"
         t-att-data-end-time="datetime.datetime.now().timestamp() + 228307"
         data-layout="circle" data-layout-background="none"
         data-progress-bar-style="surrounded" data-progress-bar-weight="thin"
         data-text-color="alpha" data-layout-background-color="400" data-progress-bar-color="alpha">
         <div class="container">
-            <div class="s_countdown_canvas_wrapper text-center pt8 pb8"/>
+            <div class="s_countdown_canvas_wrapper text-center"/>
         </div>
     </section>
 </template>