Update Readme and Homepage logo

[yogeshGroony]

Current logo in Readme only contains symbol,
Official site doesn't contain any logo at all on homepage,
while vitepress created site does contain logo section.
it's very important for branding.

I suggest new logo on Readme, home page and navbar should look like

But without dot "." and "j" capital (Easy to read).

Then I would be able to copy the url of image paste it in my blog just like Laravel 😅

[Shyam-Chen]

[yogeshGroony]

This is not global but chinese or japanese icon. It's more of the anime or children type icon.
Also I suggest renaming it from "Vue dot js" to "VueJs".