Fix other minor issues.

Author: CalebRas

Shared/Samples/Edit feature attachments/EditFeatureAttachmentsView.swift

@@ -212,7 +212,7 @@ private extension EditFeatureAttachmentsView {
 
 private extension EditFeatureAttachmentsView {
     struct AddAttachmentView: View {
-        // The closure called when add button is tapped.
+        /// The closure called when add button is tapped.
         let onAdd: (() -> Void)
 
         var body: some View {

Shared/Samples/Search with geocode/SearchWithGeocodeView.swift

@@ -49,7 +49,7 @@ struct SearchWithGeocodeView: View {
     @State private var calloutPlacement: CalloutPlacement?
 
     /// Provides search behavior customization.
-    @ObservedObject private var locatorDataSource = LocatorSearchSource(
+    @StateObject private var locatorDataSource = LocatorSearchSource(
         name: "My Locator",
         maximumResults: 10,
         maximumSuggestions: 5