WIP:HIFIS Websites unification

First draft of what could become a unified HIFIS homepage.

---

Known issues / to be solved:

• Unify teams from SCC and HIFIS coords + represent accordingly
• Services: We need much better description/overview of
  • Cloud Services
    • also to be linkable back from portal
  • Software Services: (here and here)
  • Guidelines
• "Contact" leads to general HIFIS contact page, but "Consulting" is more hidden so far.
• services/consulting: no iframe inclusion, instead hard link to lime survey. Don't know if that makes sense.
• multiple broken format things, especially with event cards and taken-over SCC blog posts

---

To be noted / to be redone when finishing the unification:

• big png file for docker: has been preliminarily resolved here.
• two November blog posts on survey have been renamed here, to have consistent dates.

_layouts/frontpage.html

@@ -52,6 +52,35 @@
                 <a href="{{ 'news/' | relative_url }}" class="btn btn-outline-secondary">More HIFIS News</a>
             </section>
         </div>
+        
+        <div class="frontpage-jumbotron">
+            <section>
+                <h1><i class="far fa-calendar-alt" aria-hidden="true"></i>&nbsp; Events</h1>
+                <div class="flex-content-wrapper">
+                    {% assign sorted_events = site.events | sort: "start.date" %}
+                    {% assign today = "now" | date: "%Y-%m-%d" %}
+                    {% assign has_upcoming_events = false %}
+                    {% for event in sorted_events %}
+                        {% if event.start.date < today or
+                              event.registration_period.to < today %}
+                            {% continue %}
+                        {% else %}
+                            {% assign has_upcoming_events = true %}
+                        {% endif %}
+                        {% include frontpage/event-card.html
+                              title = event.excerpt %}
+                    {% endfor %}
+                    {% if has_upcoming_events == false %}
+                        <article class="list-entry">
+                            <h1>
+                                There are no upcoming events right now ... stay tuned.
+                            </h1>
+                        </article>
+                    {% endif %}
+                </div>
+            </section>
+        </div>        
+        
         <div class="transition-block">
 
             {% include transition.html direction="top" %}