Added fail-safe

app/src/main/java/eu/faircode/email/Helper.java

@@ -1527,6 +1527,7 @@ public class Helper {
     }
 
     static boolean isKeyboardVisible(final View view) {
+        try {
             if (view == null)
                 return false;
             View root = view.getRootView();
@@ -1538,6 +1539,10 @@ public class Helper {
             boolean visible = insets.isVisible(WindowInsetsCompat.Type.ime());
             Log.i("isKeyboardVisible=" + visible);
             return visible;
+        } catch (Throwable ex) {
+            Log.e(ex);
+            return false;
+        }
     }
 
     static String getViewName(View view) {