[Mobile friendly] Design a new UXUI for mobile user

[Pjaijai]

Based on analytics tool, 60% of user are using mobile to access this web.

We should revamp or modify UXUI for mobile user.

This issue should be split into several small issues after discussion

[Pjaijai]

Problem:

1. Back to previous page button

[yannyyau]

Issues:

1. Actions & Navigation (Pages) mix together in top navigation

• Suggest to remove actions “成為推薦人/受薦人” & “貼街招” from top nav
• Move to user profile / homepage / on that specific page, as a button

2. Unable to go back on pages "用戶檔案" & "街招"

• Suggest to add a button to go back

3. Top navigation disappears on pages “推薦人”, ”受薦人”, “街招” in mobile mode

• Suggest to add hamburger menu in mobile mode

[Pjaijai]

Done