Add new templates and tests for improved functionality

- Created index.html template for the homepage with service cards and partner logos.
- Added page_from_md.html template for rendering pages from markdown.
- Developed services.html template detailing various services offered.
- Implemented tests for link handling in markdown, ensuring external links open in new tabs and internal links function correctly.
- Enhanced markdown parser tests to validate heading extraction, content rendering, and link safety.
- Introduced utility tests for template rendering, HTML minification, and JavaScript minification.

Co-authored-by: Copilot <copilot@github.com>

templates/components/card.html

@@ -0,0 +1,17 @@
+<div class="section-card">
+  <h3 class="section-card-title">{{ card.title }}</h3>
+  {% if card.content %}
+  <div class="section-content">{{ card.content | safe }}</div>
+  {% endif %} {% if card.details %}
+  <div class="mt-4 space-y-3">
+    {% for detail in card.details %}
+    <div class="section-card-detail">
+      <h4 class="section-card-detail-title">{{ detail.title }}</h4>
+      {% if detail.content %}
+      <div class="section-card-detail-content">{{ detail.content | safe }}</div>
+      {% endif %}
+    </div>
+    {% endfor %}
+  </div>
+  {% endif %}
+</div>