* refactor: migrate getFormattedPostTime to utils
Move app.getFormattedPostTime to utils and export along with its struct
* Set batch notification post times to user TZ
* default useMilitaryTime to false in batched email
If there is an error reading the user's preference for useMilitaryTime,
default to false, as that should be the default value if the user never
sets it.
---------
Co-authored-by: Mattermost Build <build@mattermost.com>
96e5e17d13