[newtab] change '.top-site-outer .default-icon' size to 48*48

[pinsa]

the '.top-site-outer .rich-ico' size is 48*48, but the '.top-site-outer .default-icon' size is 32*32, the icons not uniform in size.

is it possible to change the default icon size to 48*48 as well?

i can use `userContent.css` to change it myself, but can it be changed officially?

.top-site-outer .default-icon,
.top-site-outer .search-topsite {
	background-size: cover !important;
	height: 48px !important;
	width: 48px !important;
}

[Jon]

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