Publications: hide pre-2010 entries behind 'Previous work by R. Das'

- Year groups for >= 2010 render inline as before.
- Pre-2010 year groups (and any with year=0 from missing data) are
  collapsed inside a <details>/<summary>, with summary text matching
  the user's request: 'Previous work by R. Das'.

Author: rhiju

publications.md

@@ -18,6 +18,7 @@ permalink: /publications/
 
 {% for year in years %}
   {% assign year_pubs = pubs | where: "year", year %}
+  {% if year >= 2010 %}
   <section class="pub-year-group">
     <h2 class="pub-year" id="y{{ year }}">{{ year }}</h2>
     <div class="pub-list">
@@ -40,4 +41,36 @@ permalink: /publications/
       {% endfor %}
     </div>
   </section>
+  {% endif %}
 {% endfor %}
+
+<details class="show-more">
+  <summary>Previous work by R. Das</summary>
+  {% for year in years %}
+    {% if year < 2010 and year > 0 %}
+    {% assign year_pubs = pubs | where: "year", year %}
+    <section class="pub-year-group">
+      <h2 class="pub-year" id="y{{ year }}">{{ year }}</h2>
+      <div class="pub-list">
+        {% for pub in year_pubs %}
+        <article class="publication{% if pub.featured %} featured{% endif %}">
+          {% if pub.thumb %}
+            <img class="pub-thumb" src="{{ pub.thumb | relative_url }}" alt="">
+          {% endif %}
+          <div class="pub-text">
+            <p class="pub-authors">{{ pub.authors }}</p>
+            <p class="pub-title">"{{ pub.title }}"</p>
+            {% if pub.journal %}<p class="pub-meta"><em>{{ pub.journal }}</em></p>{% endif %}
+            <p class="pub-links">
+              {% if pub.pdf %}<a href="{{ pub.pdf }}" target="_blank" rel="noopener">Paper</a>{% endif %}
+              {% if pub.doi %}<a href="{{ pub.doi }}" target="_blank" rel="noopener">Link</a>{% endif %}
+              {% if pub.link_labels %}{% for label in pub.link_labels %}<a href="{{ pub.link_urls[forloop.index0] }}" target="_blank" rel="noopener">{{ label }}</a>{% endfor %}{% endif %}
+            </p>
+          </div>
+        </article>
+        {% endfor %}
+      </div>
+    </section>
+    {% endif %}
+  {% endfor %}
+</details>