fix: print position of unexpected closing tag

Author: darlanalves

src/parse.ts

@@ -292,7 +292,7 @@ export class Parser {
 
       if ((<ElementNode>this.currentTag).tag !== tagToClose) {
         this.throwError(
-          new SyntaxError(`Expected closing "${(<ElementNode>this.currentTag).tag}", found "${tagToClose}"`),
+          new SyntaxError(`Expected closing "${(<ElementNode>this.currentTag).tag}", found "${tagToClose} at ${this.position}"`),
         );
       }