feat(ios): dismiss keyboard on tap / scroll

Tapping empty space or scrolling now resigns first responder. Interactive
controls consume their own taps, so fields and buttons keep working.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: yyoyoian-pixel

ios/App/ContentView.swift

@@ -287,6 +287,11 @@ struct ContentView: View {
                 .padding(.horizontal, 16)
                 .padding(.top, 8)
             }
+            // Dismiss the keyboard on a tap in empty space or on scroll.
+            // Interactive controls consume their own taps, so fields/buttons
+            // still work — only non-control taps fall through to here.
+            .scrollDismissesKeyboard(.interactively)
+            .onTapGesture { UIApplication.shared.endEditing() }
             .navigationTitle("mhrv-rs")
             .toolbar {
                 ToolbarItem(placement: .navigationBarTrailing) {
@@ -1195,6 +1200,13 @@ class VpnManager: ObservableObject {
 
 // MARK: — Helpers
 
+extension UIApplication {
+    /// Resign first responder on whatever is focused — hides the keyboard.
+    func endEditing() {
+        sendAction(#selector(UIResponder.resignFirstResponder), to: nil, from: nil, for: nil)
+    }
+}
+
 extension NEVPNStatus {
     var displayName: String {
         switch self {