feat(assets): Adds GivingTuesday banner

cl/assets/templates/base.html

@@ -84,7 +84,7 @@ <h1>You did not supply the "private" variable to your template.
   <header class="row">
     <!-- Donate Banner -->
     {% if FUNDRAISING_MODE %}
-      {% include 'includes/dismissible_nav_banner.html' with link="https://free.law/2024/01/18/new-recap-archive-search-is-live" text="A year in the making, today we are launching a huge new search engine for the RECAP Archive" emoji="&#127873;" cookie_name="no_banner"%}
+      {% include 'includes/dismissible_nav_banner.html' with link="https://donate.free.law/forms/givingtuesday" text="<strong>Today is GivingTuesday.</strong> Your support of Free Law Project helps make the justice system more transparent and accessible to all." cookie_name="giving_tuesday" button_text="Donate Today!"%}
     {% endif %}
 
     <!-- Broken Email Banner -->