Optimize repo-list layout to enhance visual experience (#31272)

before: 

![1717655078227](https://github.com/go-gitea/gitea/assets/3371163/4d564f96-c2f8-46b1-996f-6cc7abb940ef)
***The problem was that the icon and text were not on a horizontal line,
and the horizontal was not centered;***

after: 

![1717655094071](https://github.com/go-gitea/gitea/assets/3371163/b11797f6-05f8-486c-b5fd-df89d0cbdcfd)

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Giteabot <teabot@gitea.io>

web_src/css/user.css

@@ -77,10 +77,6 @@
   padding-bottom: 5px;
 }
 
-.user.settings .iconFloat {
-  float: left;
-}
-
 .user-orgs {
   display: flex;
   flex-flow: row wrap;