fix(poll): Ensure UI reflects poll state correctly on start

- In `poll.html`, added a call to `updatePollVisibility()` within the `startPoll()`
  function. This ensures the poll's visual state is correctly rendered and
  updated immediately upon initiation or reset.
- Reordered `totalVotes` and `results` initialization within `startPoll()`
  for consistency.
- Updated the debug log message for `startPoll()` to accurately reflect its operation.
- Also includes an update to the `sources/images/kwai.png` asset.

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Author: steveseguin