Feat: Apply group single page design

[kotaaaa]

Overview

• Apply group single page design

Changes

• Applied design at group single page.
• Added Link to memberlist page, foodlist page

Note

• Function is not implemented at this PR.

Assignee Checklist:

• [x] The naming convention of the PR title is correct (See the comment at the top of this template)
• [x] The base branch is correct (See: Types of Branches)
• [x] The branch name follows the Branch Naming Conventions
• [x] The correct assignees and reviewers have been designated for this PR
• [x] The coding style follows the Coding Style Guide
• [x] All the related issues are associated with this PR
• [x] All criteria in the associated issues are met (please tick the checkboxes)
• [x] My changes do not generate new warnings or errors (especially in the console)

Reviewer Checklist:

• [x] Double-check the "Assignee Checklist"
• [x] The code follows the generic best practices and our Coding Style Guide
• [x] The code is well-commented and easy to understand
• [x] The UI changes accurately reflect the provided design

[kotaaaa]

@kanta1207 @uskayyyyy Thanks you guys for your reviews! @uskayyyyy I fixed your reviewed point, so please take a look when you have time.

[nick-y-ito]

@kotaaaa Thank you for updating! All look good :)