[IMP] theme_*: adapt themes with new s_striped_centertop snippet

*: anelusia, artists, avantgarde, aviato, beauty, bewise, bistro,
bookstore, enark, graphene, kea, kiddo, loftspace, monglia, nano, notes,
odoo experts, orchid, paptic, real_estate, treehouse, vehicle, yes, zap

This commit adapts the design of new `s_striped_centertop` snippet for
multiple themes.

task-4105455

closes odoo/design-themes#869

Part-of: task-4077427
Related: odoo/odoo#176739
Signed-off-by: Serge Bayet (seba) <seba@odoo.com>

theme_treehouse/__manifest__.py

@@ -34,6 +34,7 @@
         'views/snippets/s_unveil.xml',
         'views/snippets/s_key_benefits.xml',
         'views/snippets/s_pricelist_boxed.xml',
+        'views/snippets/s_striped_center_top.xml',
         'views/new_page_template.xml',
     ],
     'images': [

theme_treehouse/views/snippets/s_striped_center_top.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+<template id="s_striped_center_top" inherit_id="website.s_striped_center_top">
+    <!-- Title -->
+    <xpath expr="//h1" position="replace" mode="inner">
+        Leading the Way in Sustainability for a Brighter Tomorrow
+    </xpath>
+    <!-- Paragraph -->
+    <xpath expr="//p[hasclass('lead')]" position="replace" mode="inner">
+        Join us in making a difference with eco-friendly initiatives and sustainable development practices that protect our planet.
+    </xpath>
+    <!-- Button -->
+    <xpath expr="//a[hasclass('btn')]/t" position="replace" mode="inner">
+        Get Involved
+    </xpath>
+    <!-- Figcaption -->
+    <xpath expr="//figcaption" position="replace" mode="inner">
+        Sustainability crafted with care
+    </xpath>
+</template>
+
+</odoo>