only round buttons if size is set (#9377)

src/components/Button.tsx

···
       }
 
       if (shape === 'default') {
-        baseStyles.push(a.rounded_full)
         if (size === 'large') {
-          baseStyles.push({
+          baseStyles.push(a.rounded_full, {
             paddingVertical: 12,
             paddingHorizontal: 25,
             gap: 3,
           })
         } else if (size === 'small') {
-          baseStyles.push({
+          baseStyles.push(a.rounded_full, {
             paddingVertical: 8,
             paddingHorizontal: 13,
             gap: 3,
           })
         } else if (size === 'tiny') {
-          baseStyles.push({
+          baseStyles.push(a.rounded_full, {
             paddingVertical: 5,
             paddingHorizontal: 9,
             gap: 2,

src/view/com/notifications/NotificationFeedItem.tsx

···
         {padding: 10},
         a.pr_lg,
         t.atoms.border_contrast_low,
-        a.rounded_0,
         item.notification.isRead
           ? undefined
           : {