Optimize resizeBitmap(): Skip resizing for already-small images (#2565)

Co-authored-by: Sylvia van Os <sylvia@hackerchick.me>

app/src/main/java/protect/card_locker/Utils.java

@@ -594,6 +594,11 @@ public class Utils {
         double width = bitmap.getWidth();
         double height = bitmap.getHeight();
 
+        // Early exit
+        if (Math.max(width, height) <= maxSize) {
+            return bitmap;
+        }
+
         if (height > width) {
             double scale = height / maxSize;
             height = maxSize;