feat: use page content field for home page description instead of subtitle header

pages/00.home/home.md

@@ -1,6 +1,7 @@
 ---
 title: Into the East
-subtitle: 'A few moments from past journeys'
 visible: false
 routable: true
 ---
+
+A few moments from past journeys.

themes/intotheeast/blueprints/home.yaml

@@ -17,8 +17,7 @@ form:
               validate:
                 required: true
 
-            header.subtitle:
-              type: text
-              label: Subtitle
-              placeholder: 'A few moments from past journeys'
-              help: 'Short line shown below the title in between-trips mode'
+            content:
+              type: markdown
+              label: Content
+              help: 'Shown below the title in between-trips mode'

themes/intotheeast/templates/home.html.twig

@@ -252,8 +252,8 @@ homeMap.on('load', function () {
     <div class="home-feed-col">
         <div class="home-highlights-header">
             <h1 class="home-highlights-title">{{ page.title }}</h1>
-            {% if page.header.subtitle %}
-            <p class="home-highlights-subtitle">{{ page.header.subtitle }}</p>
+            {% if page.content %}
+            <div class="home-highlights-subtitle">{{ page.content|raw }}</div>
             {% endif %}
         </div>