[FEATURE]: add charts visualization

[rderbier]

Use case

Add a Chart tab where data is displayed as chart.
We should use a naming convention to help the mapping between the data and the chart.

for example
query hbar($first:int = 15) {
var(func: type(School)) {
c as count(School.projects)
}
project_count(func: uid(c), orderdesc:val(c), first: $first) {
label:School.name
value:val(c)
}
}

Would be displayed as a horizontal bar chart with a series called "Project count".
User can add Few UI settings (saved with the tab config) such as chart title, colors, etc ...

Link to examples and research

No response

Solution proposal

No response

Additional information.

No response