Hide period preset title and allow for direct period selection

[hvangeffen]

Description

• Hides the period presets title when no presets are set in the backend.
• Enables selection of custom period directly and switches to 'custom' interval when a date is selected

Screenshots

Checklist

• Make the title short and concise
• Select the correct label to include it in the release notes:
  • rel: new feature
  • rel: improvement
  • rel: fixes
  • rel: ignore
    Select to rel: ignore if this pull request fixes a New Feature or Improvement in the coming release. Update related Pull Request.
• Update documentation.
• Update tests.