add figure

majak_uistyleguide/templates/patterns/atoms/figure/figure.html

+<figure class="flex flex-col gap-2 max-w-max p-4">
+  <img
+    src="{{ source }}"
+    alt="{{ alt }}"
+  >
+
+  {% if caption %}
+    <figcaption
+      class="text-grey-250 italic text-sm"
+    >{{ caption }}</figcaption>
+  {% endif %}
+</figure>

majak_uistyleguide/templates/patterns/atoms/figure/figure.yaml

+context:
+  source: https://picsum.photos/536/354
+  alt: 'Picture of Elephant'
+  caption: 'Picture of Elephant'