Paywalls: improved template accessibility support (#2920)

Just some low hanging fruit to make paywalls work better with voice
over. There's still more we can improve but this makes them already 100%
usable.

RevenueCatUI/Templates/OnePackageWithFeaturesTemplate.swift

@@ -104,6 +104,7 @@ private struct OnePackageWithFeaturesTemplateContent: View {
         VStack(spacing: 40) {
             ForEach(self.localization.features, id: \.title) { feature in
                 FeatureView(feature: feature, colors: self.configuration.colors)
+                    .accessibilityElement(children: .combine)
             }
         }
         .padding(.horizontal)

RevenueCatUI/Views/FooterView.swift

@@ -50,6 +50,7 @@ struct FooterView: View {
     private var separator: some View {
         Image(systemName: "circle.fill")
             .font(.system(size: 5))
+            .accessibilityHidden(true)
     }
 
     private var hasTOS: Bool { self.configuration.termsOfServiceURL != nil }