fix(APP-4588): Implement useTokenCurrentDelegate hook to fix UX on TokenDelegationForm

[thekidnamedkd]

Description

Implement useTokenCurrentDelegate hook, refactor tokenDelegationForm

Task: APP-4588

Type of Change

• New feature (non-breaking change which adds functionality)

Developer Checklist:

• Manually smoke tested the functionality locally
• Confirmed there are no new warnings or errors in the browser console
• (For User Stories only) Double-checked that all Acceptance Criteria are satisfied
• Confirmed there are no new warnings on automated tests
• Merged and published any dependent changes in downstream modules
• Selected the correct base branch
• Commented the code in hard-to-understand areas
• Followed the code style guidelines of this project
• Reviewed that the Files Changed in Github’s UI reflect my intended changes
• Confirmed the pipeline checks are not failing

Review Checklist:

• Tested locally that all Acceptance Criteria or Expected Outcomes are satisfied
• Confirmed that changes follow the code style guidelines of this project

[github-actions]

🚀 Preview Deployment: View Here

[milosh86]

Left a couple of small comments and I'm still left to test it in the preview, but looks great overall 👍