change mute icon x position

web/src/canvas/mute_icon.ts

@@ -51,7 +51,7 @@ export class MuteIcon{
     }
 
     private setPosition(){
-        this.image.attr('x', this.canvas.width/2 - this.image_width).attr('y', this.canvas.height/2 - this.image_width)
+        this.image.attr('x', this.canvas.width/2 - this.image_width/2).attr('y', this.canvas.height/2 - this.image_width)
         let text_x: number = this.canvas.width/2 - this.image_width/2;
         this.text.attr('x', text_x).attr('y', (this.canvas.height/2 + 16))
         this.line1.attr('x', text_x)