chore: Add spacing before and after for tui titles

[jeevithakannan2]

Type of Change

• New feature
• Bug fix
• Documentation update
• Refactoring
• Hotfix
• Security patch
• UI/UX improvement

Description

• Add spacing before and after titles and tips in TUI.

Before

After

Testing

• Tested no issues.

Checklist

• My code adheres to the coding and style guidelines of the project.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no errors/warnings/merge conflicts.

[lj3954]

I would just return the String rather than leaking it. Or you could return a Box<str> if you want to drop the unnecessary capacity to save 8 bytes of memory. Box::leak is mainly useful if you're passing data between threads, or doing anything else the borrow checker wouldn't particularly like. There's no reason we'd need to leak this, and it's better to avoid calling functions with the potential of causing memory issues unless they're necessary.