Add aside with link to feeds

src/css/globals.css

@@ -133,4 +133,11 @@ footer {
     outline: 1px solid var(--color-primary);
     border-radius: 5px;
     outline-offset: 4px;
+}
+
+aside {
+    width: 100%;
+    background-color: var(--color-primary);
+    color: var(--color-secondary);
+    padding: var(--space-size-s);
 }