[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_monglia/views/customizations.xml

@@ -1104,4 +1104,19 @@
     </xpath>
 </template>
 
+<!-- ======== SPLIT INTRO ======== -->
+<template id="s_split_intro" inherit_id="website.s_split_intro">
+    <!-- Section -->
+    <xpath expr="//section" position="attributes">
+        <attribute name="class" add="o_cc5" remove="o_cc1" separator=" "/>
+    </xpath>
+    <!-- Left column -->
+    <xpath expr="//h1" position="replace" mode="inner">
+        Craft an amazing<br/>show
+    </xpath>
+    <xpath expr="//p" position="replace" mode="inner">
+        <br/>Turn your special occasion into a memorable event with our expert planning services. We handle every detail, from concept to execution, ensuring a seamless and enjoyable experience. Whether it’s a wedding, corporate gathering, or private celebration, we create events that leave a lasting impression.<br/><br/>
+    </xpath>
+</template>
+
 </odoo>

theme_monglia/views/images_content.xml

@@ -457,5 +457,10 @@ Check in primary_variables.scss, theme.scss and theme_common's mixins.scss -->
     <field name="name">website.s_website_form_cover_default_image</field>
     <field name="url">/theme_monglia/static/src/img/content/content_img_11.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_monglia/static/src/img/snippets/s_split_intro_default_image.jpg</field>
+</record>
 
 </odoo>