[CSS] Details inside another details (accordion widget) will represent their 'open/close feedback arrows' properly now

public/assets/default_theme/feeds.css

@@ -225,6 +225,10 @@
     word-break:break-all;
 }
 
+.note-attachments-unit>figure img {
+    height: auto;
+}
+
 .note-author-uri,.note-conversation-info,.note-text-details .note-text-details-summary small {
     font-style:italic;
 }

public/assets/default_theme/widgets.css

@@ -386,7 +386,7 @@
     margin-bottom: 0;
 }
 
-.section-settings-details[open] summary:after {
+.section-settings-details[open] > summary:after {
     animation: fadeOut 200ms cubic-bezier(0, 0.55, 0.45, 1);
     transform: rotate(180deg);
 }