Refactor: Refactor the `MobileLayout` and introdude the Typography components

[nick-y-ito]

Overview

The primary change of this PR is to make it possible to use the MobileLayout as needed, and not use it if unnecessary. With this PR, we can dynamically change the header contents.

Changes

• Refactored the MobileLayout and arranged the directory structure
• Added Typography components, H1, H2, and H3
• Refactored the BottomMenu to make the code simpler

Review points

• Please take a look at the comments I left on each file (See: https://github.com/nishiki-tech/nishiki-frontend/pull/252/files)

Screen Captures

• The login page does not have the header and footer
• The heading, back button, and menu button of each page differs

https://github.com/nishiki-tech/nishiki-frontend/assets/99148565/e38dde48-b0e8-4e08-a21b-e522426e211a

References

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Notes

The following must be addressed in a different scope shortly.

• The link for the back button on each page is not accurate yet.
• The menu button of the header on each page does not function yet.

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:

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

[nick-y-ito]

@kanta1207 Thank you for your review and solving the problem! I have revised the code as you suggested, so please take a moment to review the latest commits!

[nick-y-ito]

@kanta1207 Thank you again for you review 😄