ui: the events list is a slide-over page; the left pane, its divider and the header toggle are gone

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/ui_widgets.cpp

@@ -55,8 +55,8 @@ void install_css() {
       "popover.udpscope-menu button label { min-height: 0; }\n"
       "popover.udpscope-menu image { min-width: 12px; min-height: 0; }\n"
       "popover.udpscope-menu separator { margin: 4px 0; }\n"
-      // The events pane: the row's time is what a person scans for, so it is the one thing in the
-      // column that is not dim; the thumbnail gets an edge, or a dark plot on a dark pane has none.
+      // The events page: the row's time is what a person scans for, so it is the one thing in the
+      // list that is not dim; the thumbnail gets an edge, or a dark plot on a dark panel has none.
       ".udpscope-event-title { font-weight: bold; }\n"
       ".udpscope-event-thumb { border: 1px solid alpha(currentColor, 0.15); border-radius: 4px; }\n"
       "row.udpscope-compact button { min-height: 20px; min-width: 20px; padding: 0 3px; }\n"