Remove flashing of the kawaii logo

[yusukebe]

This!:

Google.Chrome.mp4

[ryuapp]

To fix this, we need to modify home layout.
Therefore, it's best to fix this issue at the same time as we change the landing page.

I think it's difficult to fix it easily because Vite Press does the same thing.
https://vitejs.dev/?uwu=true
commit: vitejs/vite@6a7dde5

[yusukebe]

I think it's difficult to fix it easily because VitePress does the same thing.

Oh...