chore: update branding assets to Maqtaa

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

templates/base/base_header.html

@@ -79,7 +79,7 @@
                             {{ if $.c.CustomLogo }}
                                 <img src="{{ custom $.c.CustomLogo }}" class="object-cover h-12">
                             {{ else }}
-                                <img src="{{ asset "img/opengist.png" }}" class="object-cover h-12 w-12">
+                                <img src="{{ asset "img/maqtaa.png" }}" class="object-cover h-12 w-12">
                             {{ end }}
                         </a>
                     </div>
@@ -89,7 +89,7 @@
                                 {{ if $.c.CustomLogo }}
                                     <img src="{{ custom $.c.CustomLogo }}" class="object-cover h-12">
                                 {{ else }}
-                                    <img src="{{ asset "img/opengist.png" }}" class="object-cover h-12 w-12">
+                                    <img src="{{ asset "img/maqtaa.png" }}" class="object-cover h-12 w-12">
                                 {{ end }}
                             </a>
                         </div>