Bug fix for visual updates

[quantumjot]

Fixes #180

[deprecated-napari-hub-preview-bot[bot]]

Preview page for your plugin is ready here: https://preview.napari-hub.org/quantumjot/BayesianTracker/181 Updated: 2022-10-25T10:38:22.684073

[codecov-commenter]

Codecov Report

Base: 86.74% // Head: 86.80% // Increases project coverage by +0.06% :tada:

Coverage data is based on head (847f12c) compared to base (dc78393). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #181 +/- ## ========================================== + Coverage 86.74% 86.80% +0.06% ========================================== Files 13 13 Lines 1501 1508 +7 ========================================== + Hits 1302 1309 +7 Misses 199 199 ``` | [Impacted Files](https://codecov.io/gh/quantumjot/BayesianTracker/pull/181?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alan+R+Lowe) | Coverage Δ | | |---|---|---| | [btrack/btypes.py](https://codecov.io/gh/quantumjot/BayesianTracker/pull/181/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alan+R+Lowe#diff-YnRyYWNrL2J0eXBlcy5weQ==) | `82.29% <100.00%> (+0.61%)` | :arrow_up: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alan+R+Lowe). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alan+R+Lowe)

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