More UI tweaks and fixes (#697)

* Integrations to window

* Cleanup of presenting.

* Older name for copy

* For copyable view too

Sources/Secretive/Views/Modifiers/WindowBackgroundStyle.swift

@@ -0,0 +1,47 @@
+import SwiftUI
+
+struct WindowBackgroundStyleModifier: ViewModifier {
+
+    let shapeStyle: any ShapeStyle
+
+    func body(content: Content) -> some View {
+        if #available(macOS 15.0, *) {
+            content
+                .containerBackground(
+                    shapeStyle, for: .window
+                )
+        } else {
+            content
+        }
+    }
+
+}
+
+extension View {
+
+    func windowBackgroundStyle(_ style: some ShapeStyle) -> some View {
+        modifier(WindowBackgroundStyleModifier(shapeStyle: style))
+    }
+
+}
+
+struct HiddenToolbarModifier: ViewModifier {
+
+    func body(content: Content) -> some View {
+        if #available(macOS 15.0, *) {
+            content
+                .toolbarBackgroundVisibility(.hidden, for: .automatic)
+        } else {
+            content
+        }
+    }
+
+}
+
+extension View {
+
+    func hiddenToolbar() -> some View {
+        modifier(HiddenToolbarModifier())
+    }
+
+}