fixes #193

Author: anshooarora

src/main/resources/com/aventstack/extentreports/markup/codeblock.ftl

@@ -1,3 +1,3 @@
 <textarea readonly class='code-block'>
-	${code}
+  ${code}
 </textarea>

src/main/resources/com/aventstack/extentreports/markup/codeblock.json.ftl

@@ -1,9 +1,7 @@
-<textarea readonly class='code-block'>
-	<div class='json-tree' id='code-block-json-${index}'></div>
-	<script>
-		function jsonTreeCreate${index}() { 
-			document.getElementById('code-block-json-${index}').innerHTML = JSONTree.create(${code}); 
-		}
-		jsonTreeCreate${index}();
-	</script>
-</textarea>
+<div class='json-tree' id='code-block-json-${index}'></div>
+<script>
+function jsonTreeCreate${index}() { 
+  document.getElementById('code-block-json-${index}').innerHTML = JSONTree.create(${code}); 
+}
+jsonTreeCreate${index}();
+</script>