How to add divider/border to footer in SwiftUI when using Section(footer: ) contructor

I'm trying to add a divider, or some sort of line/border, to differentiate the main content on the screen and the content I've added uisng Section(footer: ). Anytime I try to add some sort of divider in FooterView, it goes right under where the footer meets the main content. And I haven't been able to find anything that allows me to add a border to where I create the footer. I've attached an image that shows what I'm talking about. Here is the code I currently have for creating the footer which I use in ContentView():

https://i.stack.imgur.com/L3WyG.jpg

import SwiftUI

struct ContentView: View {
    @State var selectedView = 0
    var body: some View {
        Section(footer:
            FooterView(selectedView: $selectedView)
        )
        {
            ZStack {
                Color.blue
                VStack {
                    Spacer()
                    if selectedView == 0 {
                        Text("selected view = 0")
                    }
                    else {
                        Text("selected view = 1")
                    }
                }
            }.ignoresSafeArea(.all)
        }
    }
}

struct FooterView: View {
    let NoData = ["No Data displayed" : ["Nothing to show"]]
    @Binding var selectedView: Int
    
    //for checking screen is big enough to fit footer without padding
    @State var isLargeDevice: Bool = {
        if UIScreen.main.bounds.height > 800 {
            return true
        } else {
            return false
        }
    }()
    
    var body: some View {
        if isLargeDevice{
                VStack{
                    Divider()
                    HStack {
                        Button(action: {
                            // set selected view to 0 when the left button is clicked
                            selectedView = 0
                        }, label: {
                            Image(systemName: "fork.knife")
                                .font(.title2)
                                .foregroundColor(selectedView == 0 ? Color("NavBar color") : .primary)
                        }).frame(maxWidth: .infinity)

                        
                        Button(action: {
                            // set selected view to 1 when the right button is clicked
                            selectedView = 1
                        }, label: {
                            Image(systemName: "heart.fill")
                                .font(.title2)
                                .foregroundColor(selectedView == 1 ? Color("NavBar color") : .primary)
                        }).frame(maxWidth: .infinity)
                    }
                }
        }
        else {
            ZStack{
                VStack{
                    Divider()
                    HStack {
                        Button(action: {
                            // set selected view to 0 when the left button is clicked
                            selectedView = 0
                        }, label: {
                            Image(systemName: "fork.knife")
                                .font(.title2)
                                .foregroundColor(selectedView == 0 ? Color("NavBar color") : .primary)
                        }).frame(maxWidth: .infinity)

                        
                        Button(action: {
                            // set selected view to 1 when the right button is clicked
                            selectedView = 1
                        }, label: {
                            Image(systemName: "heart.fill")
                                .font(.title2)
                                .foregroundColor(selectedView == 1 ? Color("NavBar color") : .primary)
                        }).frame(maxWidth: .infinity)
                    }
                }
            }
            .padding()
        }
    }
}


struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

I tried using .overlay, a super thin rectangle, divider(), the padding modifier to see if that would help, but none have worked so far.