- used bootstrap 5 CSS icon named copy, bootstrap 3 CSS glyphicon named duplicate

- keyboard-shortcuts made more accessible by wrapping the keys into kbd-tags
- translate messages may contain allowed HTML tags
- added the record to the CHANGELOG.md

css/bootstrap/privatebin.css

@@ -143,34 +143,23 @@ html[dir="rtl"] #deletelink, html[dir="rtl"] #qrcodemodalClose {
 	padding-right: 30px;
 }
 
-#prettymessageCopyBtn {
+#prettyMessageCopyBtn {
 	position: absolute;
-	top: 5px;
-	right: 20px;
-	width: 25px;
-	height: 25px;
+	top: 8px;
+	right: 25px;
+	left: auto;
 	padding: 0;
 	background: none;
 	border: none;
 	z-index: 1;
 }
 
-#prettymessageCopyBtn svg {
-	width: 100%;
-}
-
-#copyIcon {
-	fill: rgb(145, 152, 161);
-	opacity: 0.4;
-	transition: all 0.3s ease;
-}
-
-#copyIcon:hover {
-	opacity: 1;
+html[dir="rtl"] #prettyMessageCopyBtn {
+	left: 25px;
+	right: auto;
 }
 
 #copySuccessIcon {
-	fill: rgb(63, 185, 80);
 	display: none;
 }