Refine shell status controls and glass rendering; defer cursor redraw safely

shell/ferese-shell/assets/icons/status/battery-charging.svg

@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+  <rect x="2" y="6" width="18" height="12" rx="2.8"/>
+  <path d="M22 10v4"/>
+  <path d="M12.2 7.8 8.1 12.7h3l-1 3.5 4.5-5.2h-3Z" fill="currentColor" stroke="none"/>
+</svg>