scss: move Figures from _type to _images

scss/_images.scss

@@ -32,3 +32,23 @@
 .img-circle {
   border-radius: 50%;
 }
+
+//
+// Figures
+//
+
+.figure {
+  // Ensures the caption's text aligns with the image.
+  display: inline-block;
+
+  > img {
+    @extend .img-fluid;
+    margin-bottom: ($spacer-y / 2);
+    line-height: 1;
+  }
+}
+
+.figure-caption {
+  font-size: 90%;
+  color: $gray-light;
+}

scss/_type.scss

@@ -162,23 +162,3 @@ mark,
     }
   }
 }
-
-//
-// Figures
-//
-
-.figure {
-  // Ensures the caption's text aligns with the image.
-  display: inline-block;
-
-  > img {
-    @extend .img-fluid;
-    margin-bottom: ($spacer-y / 2);
-    line-height: 1;
-  }
-}
-
-.figure-caption {
-  font-size: 90%;
-  color: $gray-light;
-}