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/components/calendar/CalendarSchedules.tsx

@@ -31,9 +31,7 @@ export function CalendarSchedules() {
                 <Text variant='h3' className='text-nowrap'>
                     MY SCHEDULES
                 </Text>
-                <Button variant='single' color='theme-black' className='h-fit p-0 btn' onClick={handleAddSchedule}>
-                    <Plus className='h-6 w-6' />
-                </Button>
+                <Button size='mini' variant='minimal' color='theme-black' onClick={handleAddSchedule} icon={Plus} />
             </div>
             <div className='flex flex-col space-y-2.5'>
                 <List