If the button is one of the primary or secondary buttons on the page, use one verb to describe what that button will do. Is the button on a page where it only has to do with editing a single link? Name it "Edit" instead of "Edit Link" or "Share" instead of "Share Link".
Just do it, it makes merge conflicts easier to manage as well as keeping unnecessary whitespace out.
We prefer to use in-line CSS, the only time you would use CSS files is to modify Ant Design's pre-defined CSS. If you have to use a reptitive CSS style, chances are that Ant Design already made it for you.