Add 'link' theme to Button

app/soapbox/components/ui/button/useButtonStyles.ts

@@ -1,6 +1,6 @@
 import classNames from 'classnames';
 
-type ButtonThemes = 'primary' | 'secondary' | 'ghost' | 'accent' | 'danger' | 'transparent'
+type ButtonThemes = 'primary' | 'secondary' | 'ghost' | 'accent' | 'danger' | 'transparent' | 'link'
 type ButtonSizes = 'sm' | 'md' | 'lg'
 
 type IButtonStyles = {
@@ -25,6 +25,7 @@ const useButtonStyles = ({
     accent: 'border-transparent text-white bg-accent-500 hover:bg-accent-300 focus:ring-pink-500 focus:ring-2 focus:ring-offset-2',
     danger: 'border-transparent text-danger-700 bg-danger-100 hover:bg-danger-200 focus:ring-danger-500 focus:ring-2 focus:ring-offset-2',
     transparent: 'border-transparent text-gray-800 backdrop-blur-sm bg-white/75 hover:bg-white/80',
+    link: 'border-transparent text-primary-600 hover:bg-gray-100 hover:text-primary-700',
   };
 
   const sizes = {