Add propper access control for snips with public option

templates/snip/badge.html.twig

@@ -0,0 +1,9 @@
+{% if snip.public %}
+    <span class="badge bg-info">
+        <i class="fa fa-lock-open"></i>
+    </span>
+{% else %}
+    <span class="badge bg-secondary">
+        <i class="fa fa-lock"></i>
+    </span>
+{% endif %}

templates/snip/index.html.twig

@@ -6,7 +6,7 @@
     <div class="list-group">
         {% for snip in snips %}
             <a class="list-group-item" href="{{ path('snip_single', {snip: snip.id}) }}">
-                {{ snip }}
+                {{ include('snip/badge.html.twig', {snip: snip}) }} {{ snip }}
             </a>
         {% endfor %}
     </div>

templates/snip/single.html.twig

@@ -3,9 +3,12 @@
 {% block body %}
     <div class="card" style="width: 100%;">
         <h4 class="card-header">
-            <a class="btn btn-sm btn-outline-info" href="{{ path('snip_edit', {snip: snip.id}) }}">
-                <i class="fa fa-pencil" aria-hidden="true"></i>
-            </a>
+            {% if is_granted('edit', snip) %}
+                <a class="btn btn-sm btn-outline-info" href="{{ path('snip_edit', {snip: snip.id}) }}">
+                    <i class="fa fa-pencil" aria-hidden="true"></i>
+                </a>
+            {% endif %}
+            {{ include('snip/badge.html.twig', {snip: snip}) }}
             {{ snip }}
         </h4>
         <div class="card-body">