Toolbar on hover

@sakshigarg9 ,

editor.Commands.extend('select-comp', {
        onHovered(em, component) {
          const trg = component && component.getEl();
          if (trg) {
            const pos = this.getElementPos(trg);
            this.updateBadge(trg, pos);
            this.updateToolbar(component); // show toolbar
            this.updateHighlighter(trg, pos);
            this.showElementOffset(trg, pos);
          }
        },
      });