Fix issues in forging - Closes #618

[slaweet]

Closes #618

[reyraa]

The previous version doesn't show Forged blocks header if the list is empty. instead it shows a message: You have not forged any blocks yet. I think it makes sense to keep the same behaviour.

[reyraa]

I can't find how have you fixed these issues:

shows Rank higher by 1
Forged blocks don’t get updates after the initial load

[slaweet]

"Rank higher by 1" was actually a slightly different problem.
I was testing on delegate with rank 50 and it showed 51. But later when I tried rank 49, it showed 52. So it was subtracting from 101, the same way it does for the progress bar. The fix is this:
9247adf

[reyraa]

Thank you Vit. All changes are good. I've just added comments on an action usage.

[reyraa]

This test is not related to title.
The issue is, Actions that we create using Redux thunk don't return object. They return a function which accepts dispatch as argument. but you're using just like other actions.

Other than how you've used it, the actual issue is as described above it best called inside component class.