Unify shell opacity and add native authentication and system controls

shell/ferese-settings/src/schema.rs

@@ -623,6 +623,17 @@ pub fn fields(page: Page) -> Vec<Field> {
                 "solid",
                 &[("solid", "Solid"), ("translucent", "Translucent")],
             ),
+            range(
+                "theme.material.opacity",
+                "Shell opacity",
+                "Background opacity for the bar, popovers, menus, notifications and sharing dialog. Text and icons stay opaque.",
+                ferese_config::DEFAULT_MATERIAL_OPACITY,
+                0.0,
+                1.0,
+                0.01,
+                "",
+                false,
+            ),
             range(
                 "theme.material.blur_radius",
                 "Background blur",
@@ -727,17 +738,6 @@ pub fn fields(page: Page) -> Vec<Field> {
                 " px",
                 true,
             ),
-            range(
-                "theme.surface.bar.opacity",
-                "Opacity",
-                "Background opacity for translucent bars, with or without blur. Text and icons stay opaque.",
-                0.78,
-                0.0,
-                1.0,
-                0.01,
-                "",
-                false,
-            ),
             range(
                 "theme.geometry.top_bar_window_gap",
                 "Window clearance",