🐛 fix line numbering on empty code

dev/prism/prism-line-numbers.css

@@ -17,7 +17,7 @@ pre[class*="language-"].line-numbers > code {
 	left: -3.8em;
 	width: 3em; /* works for line-numbers below 1000 lines */
 	letter-spacing: -1px;
-	border-right: 1px solid #999;
+	border-right: 1px solid var(--onedark-gray);
 
 	-webkit-user-select: none;
 	-moz-user-select: none;
@@ -33,7 +33,7 @@ pre[class*="language-"].line-numbers > code {
 
 		.line-numbers-rows > span:before {
 			content: counter(linenumber);
-			color: #999;
+			color: var(--onedark-gray);
 			display: block;
 			padding-right: 0.8em;
 			text-align: right;

dev/prism/prism-line-numbers.js

@@ -195,10 +195,6 @@
 	});
 
 	Prism.hooks.add('complete', function (env) {
-		if (!env.code) {
-			return;
-		}
-
 		var code = /** @type {Element} */ (env.element);
 		var pre = /** @type {HTMLElement} */ (code.parentNode);
 
@@ -221,9 +217,10 @@
 		code.classList.remove(PLUGIN_NAME);
 		// Add the class 'line-numbers' to the <pre>
 		pre.classList.add(PLUGIN_NAME);
-
+		
 		var match = env.code.match(NEW_LINE_EXP);
 		var linesNum = match ? match.length + 1 : 1;
+		
 		var lineNumbersWrapper;
 
 		var lines = new Array(linesNum + 1).join('<span></span>');