update icon

app/views/icons/_message.html.erb

@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" class="<%= local_assigns[:class] %>" width="44" height="44" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
+  <path stroke="none" d="M0 0h24v24H0z" fill="none" />
+  <path d="M8 9h8" />
+  <path d="M8 13h6" />
+  <path d="M18 4a3 3 0 0 1 3 3v8a3 3 0 0 1 -3 3h-5l-5 3v-3h-2a3 3 0 0 1 -3 -3v-8a3 3 0 0 1 3 -3h12" />
+</svg>

app/views/shared/_settings_nav.html.erb

@@ -132,7 +132,7 @@
         <%= capture do %>
           <div class="tooltip" data-tip="<%= t('ai_assistant') %>">
             <a href="<%= Docuseal::CHATGPT_URL %>" target="_blank" class="btn btn-circle btn-primary btn-md">
-              <%= svg_icon('brand_openai', class: 'w-8 h-8') %>
+              <%= svg_icon('message', class: 'w-8 h-8') %>
             </a>
           </div>
         <% end %>