fix(surveys): Change viewed to Unanswered in survey stats bar

[Phanatic]

Problem

The Survey stats bar uses two similar words to denote two completely different values. As you can see in the before picture below, Shown and Viewed are synonyms but mean different things. Shown is all the times we showed a survey to a user, Viewed is when a customer saw the survey, but didn't dismiss it or fill it out.

This is confusing, as we can see. To alleviate this, I'm changing the label on the stacked bar to be Unanswered which matches the intent of the value there.

Changes

Before

After

Does this work well for both Cloud and self-hosted?

Yes

How did you test this code?

👀

[github-actions[bot]]

Size Change: 0 B

Total Size: 1.16 MB

ℹ️ View Unchanged

| Filename | Size | | :--- | :---: | | `frontend/dist/toolbar.js` | 1.16 MB |

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