Add in-app Donation link in Termux Settings for non google playstore releases

The `TermuxConstants` class has been updated to `v0.22.0`. Check its Changelog sections for info on changes.

termux-shared/src/main/java/com/termux/shared/interact/ShareUtils.java

@@ -4,6 +4,7 @@ import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
 import android.content.Intent;
+import android.net.Uri;
 
 import androidx.core.content.ContextCompat;
 
@@ -13,6 +14,8 @@ import com.termux.shared.logger.Logger;
 
 public class ShareUtils {
 
+    private static final String LOG_TAG = "ShareUtils";
+
     /**
      * Open the system app chooser that allows the user to select which app to send the intent.
      *
@@ -68,4 +71,21 @@ public class ShareUtils {
         }
     }
 
+    /**
+     * Open a url.
+     *
+     * @param context The context for operations.
+     * @param url The url to open.
+     */
+    public static void openURL(final Context context, final String url) {
+        if (context == null || url == null || url.isEmpty()) return;
+        try {
+            Uri uri = Uri.parse(url);
+            Intent intent = new Intent(Intent.ACTION_VIEW, uri);
+            context.startActivity(intent);
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to open the url \"" + url + "\"", e);
+        }
+    }
+
 }