Adjust schedule helper UI with minute granularity

[karwosts]

Proposed change

When selecting items in the schedule helper, offer ability to adjust with minute-granularity.

Some caveats:

• adjusting individual blocks doesn't really do any error checking, this is delegated to when the user ultimately clicks update in more-info and we get the backend response for invalid settings (end < start, or overlapping blocks). I could duplicate the error checking but not sure if it is necessary. Timegrid seems to handle this all fine so it doesn't break the UI and is easily recoverable.

• Pressing Escape in the edit block dialog closes both that and the more-info at the same time, which is not desired, but I didn't discover a way to prevent it (didn't look that hard though).

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (thank you!)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example configuration

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue or discussion: https://community.home-assistant.io/t/weekly-schedule-helper-improvements/458472
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

Summary by CodeRabbit

• New Features

  • Introduced a dialog component for editing and managing schedule block information, allowing users to specify time ranges, update, and delete blocks.
  • Added new translations for editing schedule blocks and defining start and end times to enhance the UI for schedule management.

• Updates

  • Updated time selector to support a new property that allows hiding seconds in the time selection.
  • Improved event handling in the schedule form to show a new dialog for managing schedule blocks.

[silamon]

Suggested change

	)}
	scrimClickAction
	escapeKeyAction
	)}

This will prevent it from closing when clicking outside the dialog and using escape to close.

[karwosts]

While this keeps the edit time popup open on escape, the escape key still dismisses the more-info window underneath it, so I'm not sure if that's an improvement.

[silamon]

The parent modal "ha-more-info" then needs both escapeKeyAction and scrimClickAction set to a boolean, depending if the child modal is open. Looking in how this can be done, it's not that easy and straight forward.

[karwosts]

Seems like this is a general preexisting issue, as any dialog from the more-info (like options flow) also allows dismissing the more-info underneath it with Escape. (scrim click seems to work as expected though)

[silamon]

The documentation makes a mention of a "schedule event" which I would slightly prefer over "schedule block".