Unify tokens visualisation

[zxcat]

In some places token displayed as raw asset-type value 1234.000 GOLOS, in other it's numeric part displayed as localised number (may be 1 234,000 GOLOS). There is also mode to show short (rounded) values, like 12.04M CYBER.
The first two cases should be unified, the 3rd should be configurable (such as on Validators page)