[IMP] theme_*: adapt s_split_intro snippet

*: anelusia, artists, avantgarde, aviato, beauty, bewise, bistro,
bookstore, buzzy, cobalt, enark, kiddo, loftspace, monglia, nano, notes,
odoo_experts, orchid, real_estate, treehouse, vehicle, yes, zap.

This commit reviews the occurrences of `s_split_intro` snippet across
design themes.

task-4077616
part of task-4077427

closes odoo/design-themes#876

Related: odoo/odoo#175321
Signed-off-by: Christopher du Toit (chto) <chto@odoo.com>

theme_enark/views/image_library.xml

@@ -350,5 +350,10 @@
     <field name="name">website.s_website_form_cover_default_image</field>
     <field name="url">/theme_enark/static/src/img/snippets/library_image_02.jpg</field>
 </record>
+<record id="s_split_intro_default_image" model="theme.ir.attachment">
+    <field name="key">website.s_split_intro_default_image</field>
+    <field name="name">website.s_split_intro_default_image</field>
+    <field name="url">/theme_enark/static/src/img/snippets/s_split_intro_default_image.jpg</field>
+</record>
 
 </odoo>

theme_enark/views/snippets/s_split_intro.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+<template id="s_split_intro" inherit_id="website.s_split_intro">
+    <!-- Title -->
+    <xpath expr="//h1" position="replace" mode="inner">
+        Transform your<br/>vision into reality
+    </xpath>
+    <!-- Paragraph -->
+    <xpath expr="//p" position="replace" mode="inner">
+        <br/>Partner with us to bring your architectural dreams to life. Our team combines creative design with practical expertise to craft spaces that inspire and function seamlessly. Whether you're planning a residential haven or a commercial landmark, we turn your ideas into stunning, functional structures.<br/><br/>
+    </xpath>
+</template>
+
+</odoo>