✨ Add Tab Groups

AboTracker/views/PaymentCalendarView.swift

@@ -0,0 +1,18 @@
+import SwiftUI
+
+struct PaymentCalendarView: View {
+    var body: some View {
+        VStack {
+            Text("Payment Calendar")
+                .font(.title)
+                .padding()
+            Spacer()
+        }
+    }
+}
+
+struct PaymentCalendarView_Previews: PreviewProvider {
+    static var previews: some View {
+        PaymentCalendarView()
+    }
+}