minor styling for thumbnails

Author: jay-kunaico

src/react-image-lightbox.js

@@ -1621,7 +1621,7 @@ class ReactImageLightbox extends Component {
                     }`}
                     style={{
                       margin: '14px',
-                      padding: '1px',
+                      padding: '2px',
                       borderRadius: '4px',
                     }}
                     src={img}

src/style.css

@@ -408,6 +408,10 @@
   display: inline;
 }
 
+.thumbNails {
+  border: 2px solid gray;
+}
+
 .thumbNailsactive {
-  border: 1px solid gray;
+  border: 2px solid rgb(2, 118, 177);
 }