Feat : Apply dropdown menu to group card

[kanta1207]

Overview

Apply dropdownMenu to each group card components, and modify & refactor the design in GroupPage (ex. remove menu button, remove unnecessary drawers

Changes

• Applied dropdown menu to each of group card (src/features/groups/components/GroupCardList/GroupCard/GroupCollectionMenuButton/index.tsx
• Removed menu button from GroupPage UI (src/components/page/GroupsPage.tsx)
• Removed unnecessary component files (Please check "file changed" tab to see which file was deleted)
• Refactor the directory structure under GroupCardList.

  Review points

• The nested directory structure under the GroupCardList directory. Is it right approach?
• I kept RenameGroupButton since it'll be used in the header in GroupCollectionPage. Should I delete it for now?

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
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• [x] The coding style follows the Coding Style Guide
• [x] All the related issues are associated with this PR
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• [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