Update schedule based on late broadcast

[broad-well]

Checklist

• [x] This update has been tested thoroughly enough to ensure there are no functional bugs or obvious layout issues.
• [x] This update has been tested in both desktop and mobile layouts.
• [x] This update does not break any existing functionality, layout, or style rules, unless the update is explicitly intended to remove or update such functionality, layout, or style rules.
• [x] This update is free of any code intended only for debugging or testing purposes.
• [x] This update follows the FAMNM Website Code Style Guide.
• [x] This update meets the visual style requirements as specified in the FAMNM Website Visual Style Guide, and any additional visual elements not previously specified in the FAMNM Website Visual Style Guide have been styled so as not to clash visually with the rest of the site.

Description

Update the FRC kickoff event schedule table to accommodate the late start time of FIRST's kickoff broadcast. Check that this visualization matches Rebecca's plans (see #frc-kickoff in Slack) and that the horizontal split expresses the overlapping events clearly.

[broad-well]

The preview is available at https://frc-kickoff.famnm-website.pages.dev/events/kickoff.