[visualize] Fix top line of "Agents status" visualization

[jesusgn90]

Hi team, we need to found a way to make the top line be fully displayed and not just half of the line as the screenshot below:

Regards

[juankaromo]

Update
Fixed the problem of 'covered dots' with these patch styles:

.visChart__container .chart > svg{
  position: absolute;
}

.visChart__container svg g.points.line, 
.visChart__container svg g.points.area {
  display: contents;
}

[jesusgn90]

The next line is unsafe:

if ((visParams || {}).valueAxes && (this.visData.series || [])[0]) {

Replace it with the next ones:

const valueAxes = (visParams || {}).valueAxes || false;
const hasSeries = ((this.visData || {}).series || []).length;
if (valueAxes && hasSeries) {