fix(web): better dimensions of LED display background

Author: antond15

web/style.css

@@ -31,8 +31,8 @@
     position: absolute;
     width: 48%;
     height: 7.1%;
-    right: 28%;
-    bottom: 13.8%;
+    right: 27.9%;
+    bottom: 13.7%;
 }
 
 .channel-input input {