Topic analysis improvements

[Haarolean]

• Display percentage in %

• Display time passed since the start

• Split "scanned messages" to two lines: "scanned messages" and "scanned bytes"

[BulatKha]

@Haarolean it looks almost according the way you suggested. However the overall progress percentage and progress bar look a bit strange now:

Suggestion: Show the percentage above the progress bar, using a bigger font (most important info in the block, while the rest is additional info).
And the progress bar width to be matched to block width and it's alignment to the center. So it would be more consistent.

Should it be created as a separate improvement task or fixed here while we are at it anyway?

CC @armenuikafka

[pradyumnad]

Were you looking for something like this? @BulatKha
I can submit a PR, can you assign this to me? @Haarolean

[Haarolean]

@pradyumnad that's better, yes

[pradyumnad]

@Haarolean PR submitted #4123

[BulatKha]

@Haarolean @pradyumnad just a minor comment to fix the alignment of the progress bar, as it looks a bit sideways. Centered and stretched from the left edge of the text to the right border of the second column would look better.
Looks fine otherwise!

[pradyumnad]

@BulatKha yes, I was just fiddling with Pixelmator to kind of get the idea. The code was done to fix it.