CMS Kit: Fix votes count for multiple vote allowed polls. #16200
Resolves #16198
There was a issue with "multiple vote allowed" polls. When user select multiple options it seems like only 1 vote has given.
Vote count increasing method was in wrong line. I fixed this bug now it works as expected. Unit test added for this scenario.
Decimal numbers added to vote percentage. I used %xy.z pattern to show vote percentages.
Also there were some problems with unit tests. They also fixed.