fix(UIUX): minor changes on landingpage

discuss_data/templates/landingpage/nav_top_landing_page.html

@@ -23,7 +23,7 @@
             </li>
         </ul>
 
-        <input id="search-field" class="w-25 form-control mx-auto" type="text" placeholder="{% trans "Search" %}" name="q" ic-get-from="{% url 'ddusers:search' %}" ic-target="#content" aria-label="Search">
+        <input id="search-field" class="w-25 form-control mx-auto" type="text" placeholder="{% trans "Search for datasets and scholars" %}" name="q" ic-get-from="{% url 'ddusers:search' %}" ic-target="#content" aria-label="Search">
 
         <ul class="navbar-nav ml-auto">
             {% comment %}
@@ -33,7 +33,7 @@
             {% endcomment %}
             {% if request.user.is_authenticated %}
             <li class="nav-item">
-                <a class="nav-link" href="{% url 'ddusers.dashboard_page' %}">{% trans "Platform" %}</a>
+                <a class="nav-link" href="{% url 'ddusers.dashboard_page' %}">{% trans "Dashboard" %}</a>
             </li>
             <li class="nav-item">
                 <a class="nav-link" href="{% url 'shibboleth:logout' %}">{% trans "Sign Out" %}</a>