[Enchant] Add Budget Dialog

[Punlork]

🎯 Description

Improve Add Budget Dialog design

Closes: # (issue)

📱 Changes

• Describe key changes made
• List any new features, bug fixes, or refactors
• Include additional details if necessary

🧪 Testing Instructions

Behaviour

1. Do this
2. Do that

📸 Screenshots / Screen Recordings (if applicable)

If your PR involves UI changes, please add screenshots or screen recordings here.

Platform	Before	After
Android
iOS

🔍 Checklist for reviewers

• Code is formatted correctly
• Tests are passing
• New tests are added (if needed)
• Style matches the figma/designer requests
• Tested on:
  • iOS
  • Android

✍️ Additional Context

Add any other information that we might know

[theperu]

Thanks for the PR! autofocus, textAlign: center, and the SizedBox width fix are all great additions. A couple of small consistency notes:

• shape can be removed, M3 already rounds dialog corners and no other dialog in the project overrides this.
• insetPadding: Sizes.edgeInsetsTablet this constant is tablet-specific, so it'll make the dialog narrower than intended on phones. Safe to just remove the override entirely.