fix: add check to keep hour in timeline (in day and week view) if LiveTimeIndicator time or bubble dosen't overlap.

[mataai]

Description

Fixes: #336

Updates the visibility check on the timeline hour to keep it displayed if both showTime and showTimeBackgroundView on the LiveTimeIndicator are not enabled.
Currently if both showTime and showTimeBackgroundView display are both disabled the hours next to the current time disappears 15 minutes before and after to prevent overlap.
With this change the hour in the timeline will disappear only if both showTime and showTimeBackgroundView are enabled in the liveTimeIndicatorSettings.

Checklist

• The title of my PR starts with a Conventional Commit prefix (fix:, feat:, docs: etc).
• I have followed the Contributor Guide when preparing my PR.
• I have updated/added tests for ALL new/updated/fixed functionality.
• I have updated/added relevant documentation in docs and added dartdoc comments with ///.
• I have updated/added relevant examples in examples or docs.

Breaking Change?

• Yes, this PR is a breaking change.
• No, this PR is not a breaking change.

Related Issues

Closes #336

[Vinnie1991]

I've the bug also in one of mine applications. And when I've used this commit the issue resolves.