feat(ui): update button variants following figma (#482)

* feat(ui): update button variants following figma

* feat(ui): separate size prop to allow for regular and small sized button variants

* update type to no longer include minimal-small

* update uno css config to use new spacing system

* add variants and sizes to file upload; update button and file upload stories

* add mini button variant and update small button

* specify width on icon-only regular variant

* update plus buttons to be mini sizes

* remove redundant classnames

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Co-authored-by: doprz <52579214+doprz@users.noreply.github.com>

src/views/hooks/useChangelog.tsx

@@ -21,7 +21,7 @@ export default function useChangelog(): () => void {
                     <Text variant='h1' className='text-theme-black'>
                         Changelog
                     </Text>
-                    <Button variant='single' onClick={close} color='theme-black' className='p-1 text-gray-700'>
+                    <Button variant='minimal' onClick={close} color='theme-black' className='p-1 text-gray-700'>
                         <X className='h-6 w-6' />
                     </Button>
                 </div>