ISTWCMS-5487: updating site footer template to use new home link variable

templates/site-footer/uw-site-footer.html.twig

-{% if site_footer %}
-  {% include "@layouts/site-footer/site-footer.twig" with {
-    "body": site_footer.content,
-    "logo_link": site_footer.logo_link,
-    "logo_url": site_footer.logo_url,
-    "site_name": site_footer.site_name,
-    "logo_alt_text": site_footer.logo_alt_text,
-    "social_media": site_footer.social_media,
-    "social_media_placement": "local-site-footer",
-    "primary": site_footer.primary
-  } %}
-{% endif %}
+{% if site_footer %}
+  {% include "@layouts/site-footer/site-footer.twig" with {
+    "body": site_footer.content,
+    "logo_link": site_footer.logo_link,
+    "logo_url": site_footer.logo_url,
+    "site_name": site_footer.site_name,
+    "logo_alt_text": site_footer.logo_alt_text,
+    "social_media": site_footer.social_media,
+    "social_media_placement": "local-site-footer",
+    "primary": site_footer.primary,
+    'home_link': site_footer.home_link
+  } %}
+{% endif %}