[IMP] theme_enark: update the theme

This commit updates the theme to improve the design with new colors, new
pictures and new snippet customizations.

task-2601581

Part-of: odoo/design-themes#500

theme_enark/views/snippets/s_parallax.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+<template id="s_parallax" inherit_id="website.s_parallax">
+    <!-- Section -->
+    <xpath expr="//section" position="attributes">
+        <attribute name="class" add="o_full_screen_height justify-content-center" remove="o_half_screen_height" separator=" "/>
+    </xpath>
+    <!-- Text -->
+    <xpath expr="//div[hasclass('oe_empty')]" position="after">
+        <div class="container">
+            <div class="row d-flex justify-content-start">
+                <h1><i>“One of the great beauties of architecture is that each time, it is like life starting all over again.”</i></h1>
+            </div>
+        </div>
+    </xpath>
+</template>
+
+</odoo>