Keep the settings menu above the media view

docs/webui.md

@@ -123,7 +123,8 @@ box live in Chat, not Call, and the connection stats are not chips yet.
 
 - **Media** and **Bot** are scope buttons beside Guild and DM. They open a full-window view below
   the header and the call strip (the shell is covered; only the header, and the call strip when it
-  is visible, stay on screen). Mobile is out of scope for the media feature.
+  is visible, stay on screen). Settings slides over the media view. Mobile is out of scope for the
+  media feature.
 - Media lists scraped items with kind chips (All, Images, GIFs, Videos, Audio) and filters for
   source (any, attachments, stickers, embeds), source channel, poster, aspect ratio, resolution,
   and a posted-date range (from/to). **New scrape…** opens a popup with **Server** and **Group

poc/public/media.css

@@ -6,7 +6,8 @@
     right: 0;
     top: var(--media-top, 50px);
     bottom: 0;
-    z-index: 90;
+    /* Below the settings slide-over (80); media modals stay above it. */
+    z-index: 70;
     display: flex;
     background: var(--color-bg);
 }