Fix issue - Horizontal and vertical flip buttons class names are interchanged

Author: sachinchoolur

src/css/lightgallery.css

@@ -878,11 +878,11 @@ body:not(.lg-from-hash) .lg-outer.lg-start-zoom .lg-item.lg-complete .lg-object
 }
 
 .lg-flip-hor:after {
-  content: "\e903";
+  content: "\e902";
 }
 
 .lg-flip-ver:after {
-  content: "\e902";
+  content: "\e903";
 }
 
 .group {
@@ -1151,5 +1151,3 @@ body:not(.lg-from-hash) .lg-outer.lg-start-zoom .lg-item.lg-complete .lg-object
   -o-transition: left 1s cubic-bezier(0, 0, 0.25, 1) 0s, opacity 0.1s ease 0s;
   transition: left 1s cubic-bezier(0, 0, 0.25, 1) 0s, opacity 0.1s ease 0s;
 }
-
-/*# sourceMappingURL=lightgallery.css.map */

src/sass/lg-rotate.scss

@@ -28,11 +28,11 @@
 }
 .lg-flip-hor {
     &:after {
-        content: "\e903";
+        content: "\e902";
     } 
 }
 .lg-flip-ver {
     &:after {
-        content: "\e902";
+        content: "\e903";
     } 
 }