Tooltip integer fix

[mrvisscher]

Fixes a bug with the previous table overflow tooltip functionality where an error is thrown when the table cell data iss not of type String.

Checklist

• [x] Keep pull requests small so they can be easily reviewed.
• [x] Update the documentation, please follow the numpy style guide.
• [ ] Update tests.
• [x] Categorize the PR by setting a good title and adding one of the labels: bug, feature, ui, change, documentation, breaking, ci as they show up in the changelog.
• [ ] Link this PR to related issues by using closing keywords.
• [x] Request a review from another developer.

[coveralls]

coverage: 50.055%. remained the same when pulling c4bbde21951037d2ded5d46de9624e75c4b11c53 on mrvisscher:tooltip-integer-fix into d5b9e75a56355f7ca9f90898de7d7908f7d28344 on LCA-ActivityBrowser:master.

[marc-vdm]

Could you check if this works in combination with #1151 and we get a useful date value and not a Unix time string or something?

[github-actions[bot]]

This issue has been implemented in the new release of Activity Browser 🚀 (version 2.9.3), you can get the new version by updating Activity Browser.

🤖beep boop! I'm a bot and this message was an automated action. If updating does not make sense for this issue, just ignore this.