Feature frontend/timesheet approvals and UI updates

[Zayood]

Short Description

Link to Issue

• Fixes { issue-id }

Screenshots (if applicable)

Acceptance Criteria

• [ ] My PR commit name matches feat/chore/bug: (config/frontend/api): message
• [ ] I have ran a lint on my relevant project directory and fixed all fixable issues
• [ ] I have crossed off all task items linked to the issue
• [ ] I have added/updated any relevant documentation related to my code, if exists
• [ ] I have added relevant tests to the code
• [ ] I have removed all unused styles from my code, if applicable
• [ ] I have replaced all hardcoded strings from my code, if applicable