Import export settings

Shared/OpenURLHandler.swift

@@ -14,6 +14,11 @@ struct OpenURLHandler {
     var navigationStyle: NavigationStyle
 
     func handle(_ url: URL) {
+        if url.isFileURL, url.standardizedFileURL.absoluteString.hasSuffix(".\(ImportExportSettingsModel.settingsExtension)") {
+            navigation.presentSettingsImportSheet(url)
+            return
+        }
+
         if Self.firstHandle {
             Self.firstHandle = false