Quasar: Add label in Linear Progress

[ajcastro]

I think it is a nice feature if we can display a label in linear progress.
I just edited the image in paint to demo example.

[pdanpdan]

Just add what you want in the default slot of the QLinearProgreee, like here:
https://codepen.io/pdanpdan/pen/qBBqGWL?editors=1010

[rstoenescu]

@pdanpdan Please add this example in docs.

[rstoenescu]

Better example:
https://codepen.io/rstoenescu/pen/GRRrRgE?&editable=true&editors=101

From updated docs:

To add a label to the progress bar you can use the default slot. Take care to:

• use a size big enough to allow showing the label
• set a text color for the label so that it is visible both on the filled and unfilled areas, or use text-shadow CSS, or use a QBadge as in the example blow