Show precise notification count instead of just 40+ if there's more

Signed-off-by: Nathan Sparrow <[email protected]>

app/javascript/mastodon/components/icon_with_badge.tsx

@@ -1,7 +1,7 @@
 import type { IconProp } from './icon';
 import { Icon } from './icon';
 
-const formatNumber = (num: number): number | string => (num > 40 ? '40+' : num);
+const formatNumber = (num: number): number | string => (num > 40 ? num : num);
 
 interface Props {
   id: string;