:art: fix https://hacpai.com/article/1579786655216/comment/1588987002538?r=Vanessa

src/ts/toolbar/Counter.ts

@@ -3,7 +3,7 @@ export class Counter {
 
     constructor(vditor: IVditor) {
         this.element = document.createElement("span");
-        this.element.className = "vditor-counter vditor-tooltipped vditor-tooltipped__n";
+        this.element.className = "vditor-counter vditor-tooltipped vditor-tooltipped__nw";
 
         this.render(vditor, "");