* 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>
It was a good decision in hindsight to keep the public module as 0.x
because this would have been a breaking change again.
https://mattermost.atlassian.net/browse/MM-53032
```release-note
Changed the Go module path from github.com/mattermost/mattermost-server/server/v8 to github.com/mattermost/mattermost/server/v8.
For the public facing module, it's path is also changed from github.com/mattermost/mattermost-server/server/public to github.com/mattermost/mattermost/server/public
```
