do not treat 'No data' as warning or error

deltachat-ios/Controller/ConnectivityViewController.swift

@@ -73,9 +73,12 @@ class ConnectivityViewController: WebViewViewController {
 
         let timestamps = UserDefaults.standard.array(forKey: Constants.Keys.notificationTimestamps) as? [Double]
         guard let timestamps = timestamps else {
-            return "<span class=\"yellow dot\"></span>"
+            // in most cases, here the app was just installed and we do not have any data.
+            // so, do not show something error-like here.
+            // (in case of errors, it usually converts to an error sooner or later)
+            return "<span class=\"green dot\"></span>"
                 .appending(title)
-                .appending(String.localized("no_data"))
+                .appending(String.localized("on"))
         }
 
         var averageDelta: Double = 0

deltachat-ios/en.lproj/Localizable.strings

@@ -859,7 +859,6 @@
 
 "perm_ios_explain_access_to_camera_denied" = "To take photos, capture videos or use the QR-Code scanner, open the system settings and enable \"Camera\".";
 "open_settings" = "Open Settings";
-"no_data" = "No data";
 "notifications_disabled_dc" = "Disabled in Delta Chat.";
 "notifications_disabled" = "Disabled in system settings.";
 "notifications_stats_minutes" = "In average every %1$d minutes.";

scripts/untranslated.xml

@@ -12,7 +12,6 @@
     
     <string name="perm_ios_explain_access_to_camera_denied">To take photos, capture videos or use the QR-Code scanner, open the system settings and enable \"Camera\".</string>
     <string name="open_settings">Open Settings</string>
-    <string name="no_data">No data</string>
     <string name="notifications_disabled_dc">Disabled in Delta Chat.</string>
     <string name="notifications_disabled">Disabled in system settings.</string>
     <string name="notifications_stats_minutes">In average every %1$d minutes.</string>