fix: widget iOS 17 deployment target + register FloatingTabState

- Widget extension: 16.0 → 17.0 (containerBackground/widget API require 17)
- xcodegen re-run picks up FloatingTabState.swift (was on disk but
  not registered in project.pbxproj after previous xcodegen run)

KisaniCal/Views/SettingsView.swift

@@ -44,6 +44,7 @@ struct SettingsView: View {
             AppColors.background(cs).ignoresSafeArea()
             ScrollView(showsIndicators: false) {
                 VStack(spacing: 0) {
+                    Color.clear.frame(height: 0).trackScrollForTabBar()
 
                     Text("Settings")
                         .font(AppFonts.sans(15, weight: .semibold))