Buttons: Fix a few .button-link glitches after [40052].

Removes some stray underlines. Explicitly set the button text to be left aligned.

Props Cheffheid, f.staude, Presskopp.

See #34242.
Fixes #35126, #38712.


git-svn-id: https://develop.svn.wordpress.org/trunk@40059 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/css/buttons.css

@@ -209,6 +209,7 @@ TABLE OF CONTENTS:
 	background: none;
 	outline: none;
 	cursor: pointer;
+	text-align: left;
 	/* Mimics the default link style in common.css */
 	color: #0073aa;
 	text-decoration: underline;