Split the blur into world, menu and widget blurs

The world or panorama keeps its animated background blur, while glass
behind menus and behind widgets (buttons, the dock, the account chip)
each get a fixed blur of their own. Glass is left out when its blur is 0.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/main/java/org/saturnclient/ui/elements/Panel.java

@@ -1,5 +1,6 @@
 package org.saturnclient.ui.elements;
 
+import org.saturnclient.config.Config;
 import org.saturnclient.config.Theme;
 import org.saturnclient.ui.Element;
 import org.saturnclient.ui.ElementContext;
@@ -17,12 +18,7 @@ public class Panel extends Element {
     }
 
     public static void drawBackground(RenderScope renderScope, int width, int height) {
-        // Frosted behind a background that isn't solid
-        if (Theme.getPanelBg() >>> 24 < 0xFF) {
-            renderScope.drawGlass(0, 0, width, height, Theme.BG_RADIUS.value);
-        }
-
-        renderScope.drawRoundedRectangle(0, 0, width, height, Theme.BG_RADIUS.value, 1,
+        renderScope.drawGlassRectangle(0, 0, width, height, Theme.BG_RADIUS.value, Config.menuBlur.value, 1,
                 Theme.getPanelBg(), Theme.getBorder());
     }
 }