rename partner title class and reduce space underneath it

Author: chris-lawton

tbx/project_styleguide/templates/patterns/molecules/streamfield/blocks/partners_block.html

@@ -2,7 +2,7 @@
 
 <div class="partners grid__partners">
     {% if value.title %}
-        {% include "patterns/atoms/motif-heading/motif-heading.html" with heading=value.title heading_level=2 classes="showcase__title motif-heading--two motif-heading--static" %}
+        {% include "patterns/atoms/motif-heading/motif-heading.html" with heading=value.title heading_level=2 classes="partners__title motif-heading--two motif-heading--static" %}
     {% endif %}
 
     {% include "patterns/molecules/partner_logos/partner_logos.html" with partner_logos=value.partner_logos %}

tbx/static_src/sass/components/_partners.scss

@@ -10,6 +10,11 @@
         max-height: 90px;
     }
 
+    &__title {
+        @include font-size(heading-two-c);
+        margin-bottom: $spacer-medium;
+    }
+
     &__logos {
         display: flex;
         flex-wrap: wrap;