[Mobile] Top bar icon overlaps with content and switch chain dropdown not clickable

[joyzoursky]

Testing browser: Chrome on Mac
Testing link: https://testnet.likedao-dev.pandawork.com/proposals?tab=deposit&page=1

Steps:

1. Connect to wallet
2. Narrow the browser width as around half of a macbook laptop
3. See in the top bar, the icon and the content is too close and overlapping a bit at the margin
4. Also try to click the testnet dropdown to switch chain, but cannot see the dropdown menu as in desktop view