[mirotalksfu] - fix typo

public/css/Room.css

@@ -669,7 +669,7 @@ em-emoji-picker {
     background: #376df9;
 }
 
-.swal2-image {
+.img-about {
     margin: 0 !important;
 }
 

public/js/Room.js

@@ -2586,6 +2586,7 @@ function showAbout() {
     Swal.fire({
         background: swalBackground,
         imageUrl: image.about,
+        customClass: { image: 'img-about' },
         position: 'center',
         title: 'WebRTC SFU',
         html: `