Gjw/fix panel gap

[gjwgit]

Pull Request Details

What issue does this PR address

• Add panelGap eveerywhere

• Link to associated issue: #586

Checklist

Complete the check-list below to ensure your branch is ready for PR.

Flutter Style Guide: https://survivor.togaware.com/gnulinux/flutter-style.html

• [ ] Screenshots included in linked issue - not required
• [ ] Changes adhere to the style and coding guideline - need to fix extra imports empty line
• [x] No confidential information
• [x] No duplicated content
• [x] No lint check errors related to your changes (make prep or flutter analyze lib)
• [ ] Pre-exisiting lint errors noted: [HERE]
• [ ] Integration test make qtest.tmp screenshot included in issue
• [x] Tested on device:
  • [x] Linux
  • [ ] MacOS
  • [ ] Windows
• [x] Added one reviewers

Finalising

Once PR discussion is complete and reviewers have approved:

• [ ] Merge dev into the branch
• [ ] Resolve any conflicts
• [ ] Add one line summary into CHANGELOG.md
• [ ] Bump appropriate version number in pubspec.yaml
• [ ] Push to git repository and review
• [ ] Merge PR into dev (gjwgit)