Update codeit.js

Author: KostaMalsev

lib/codeit.js

@@ -1013,6 +1013,21 @@ class CodeitElement extends HTMLElement {
 
       }
 
+      // if range at start of newline container (at end of line)
+      if (container.nodeValue.startsWith('\n') &&
+          range.startOffset === 0) {
+        
+        // check previous element
+        if (container.previousSibling.nodeType === 1 && // previous sibling is an element
+            container.previousSibling
+            .classList.contains(className)) {
+          
+          return true;
+          
+        }
+        
+      }
+      
       return false;
 
     }