ISTWCMS-6026: Updates Pattern lab footer and site container pattern

src/patterns/03-layouts/footer/footer.twig

-<footer class="uw-footer"{% if branding_level == 'full' %} role="contentinfo"{% endif %}>
+{%  if pattern_lab %}
+  {%  set faculty = faculty ? faculty : 'org-default' %}
+  {%  set branding_level = branding_level ? branding_level : 'full' %}
+{% endif %}
+<footer class="uw-footer{%  if pattern_lab %} {{ faculty }} {% endif %}"{% if branding_level == 'full' %} role="contentinfo"{% endif %}>
     <div class="uw-site-footer__block">
         {% block content %}
             {% include "@layouts/site-footer/site-footer.twig" with {
@@ -12,10 +16,6 @@
             } %}
         {% endblock %}
     </div>
-  {%  if pattern_lab %}
-    {%  set faculty = faculty ? faculty : 'org-default' %}
-    {%  set branding_level = branding_level ? branding_level : 'full' %}
-  {% endif %}
     <div class="uw-footer__wrapper">
       {% if branding_level == 'full' %}
       <div class="uw-footer__address">

src/patterns/03-layouts/site-container/site-container.yml

@@ -133,7 +133,7 @@ social_media:
     - text: "Instagram"
       url: "https://www.instagram.com/uofwaterloo/"
     - text: "Tiktok"
-      url: "https://www.tiktok.com"
+      url: "https://www.tiktok.com/@uwaterloo"
     - text: "Twitter"
       url: "https://twitter.com/uWaterloo"
     - text: "LinkedIn"