Check that all styles are consistent with the Figma design

[SodaVolcano]

Basic Information

I noticed that quite a few pages don't have the styling specified in the Figma design, see sign in page #135 and the current sign up page. Also, #152

Need someone to go through each page to make sure the style is consistent and if not, fix them.

[SeiKasahara]

Currently reconstruct the signup page with #134