feat: today's date in calenday should look differently

[CREDO23]

Description

Today's date should be a string in calendars

Type of Change

• [ ] Bug fix
• [ ] New feature
• [ ] Breaking change
• [ ] Documentation update

Checklist

• [x] My code follows the style guidelines of this project
• [ ] I have performed a self-review of my code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings

Previous screenshots

Current screenshots