disable cleartextTrafficPermitted. default to https for links.

docs/README.md

@@ -11,10 +11,10 @@ Regular stable releases of Keepass2Android are available on [Google Play](https:
 Beta-releases can be obtained by opting in to the [Beta testing channel](https://play.google.com/apps/testing/keepass2android.keepass2android) or [Beta testing channel for Keepass2Android Offline](https://play.google.com/apps/testing/keepass2android.keepass2android_nonet).
 
 # How can I contribute?
-* Help to translate Keepass2Android into your language or improve translations at [our Crowdin page](http://crowdin.net/project/keepass2android)
+* Help to translate Keepass2Android into your language or improve translations at [our Crowdin page](https://crowdin.net/project/keepass2android)
 * Add features by [creating a plugin](How-to-create-a-plug-in_.md) or creating a pull request. You might want to contact me before you start working so I can coordinate efforts.
 * [Become a GitHub sponsor to boost 🚀 development](https://github.com/sponsors/PhilippC)
-* [Make a donation](http://philipp.crocoll.net/donate.php)
+* [Make a donation](https://philipp.crocoll.net/donate.php)
 
 # How do I learn more?
 Please see the [wiki](https://github.com/PhilippC/keepass2android/wiki/Documentation) for further information.

src/keepass2android-app/EntryActivity.cs

@@ -1546,10 +1546,10 @@ namespace keepass2android
             string url = _stringViews[urlFieldKey].Text;
 			if (url == null) return false;
 
-			// Default http:// if no protocol specified
+			// Default https:// if no protocol specified
 			if ((!url.Contains(":") || (url.StartsWith("www."))))
 			{
-				url = "http://" + url;
+				url = "https://" + url;
 			}
 
 			try

src/keepass2android-app/Resources/xml/network_security_config.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <network-security-config>
-  <base-config cleartextTrafficPermitted="true">
+  <base-config>
     <trust-anchors>
       <certificates src="system" />
       <certificates src="user" />