core ui progress bar improvement

[ChengYanJin]

Component: progressbar

What happened:

As shown in the screenshot,
the text inside the progress bar is not vertically centered.
progress bar color should be confirmed
progress bar animation should be reviewed
@Cuervino

What was expected:
the text inside the progress bar should be vertically centered.

Steps to reproduce

Resolution proposal (optional):

[Cuervino]

Pending new proposal (we think that the text might be better OUTSIDE of the progress bar, for better visibility).