make the fake chat bubbles in landing screen scrollable

Session/Onboarding/LandingScreen.swift

@@ -209,6 +209,7 @@ struct FakeChat: View {
     ]
     
     var body: some View {
+        ScrollView(showsIndicators: false) {
             VStack(
                 alignment: .leading,
                 spacing: 18
@@ -233,11 +234,14 @@ struct FakeChat: View {
                     }
                 }
             }
+            .frame(maxWidth: .infinity)
             .frame(
                 height: 320,
                 alignment: .bottom
             )
             .padding(.horizontal, 36)
+        }
+        .fixedSize(horizontal: false, vertical: true)
         .onAppear {
             guard numberOfBubblesShown < 4 else { return }