More UI tweaks and fixes (#697)

* Integrations to window

* Cleanup of presenting.

* Older name for copy

* For copyable view too

Sources/Secretive/Views/Modifiers/ErrorStyle.swift

@@ -0,0 +1,19 @@
+import SwiftUI
+
+struct ErrorStyleModifier: ViewModifier {
+
+    func body(content: Content) -> some View {
+        content
+            .foregroundStyle(.red)
+            .font(.callout)
+    }
+    
+}
+
+extension View {
+
+    func errorStyle() -> some View {
+        modifier(ErrorStyleModifier())
+    }
+
+}