Re-schedule jobs created by the reminder command if node process goes down

Problem

The user can create a reminder for the next day, but if the node process goes down (this happens frequently), the reminder message won’t be sent.

Proposed Solution

store in the DB and load from the DB, because the node instance could be replace with another or load balanced for example. (from this PR)

Tasks

• New collection called jobs that have a id, reminderMessage, status with the possible values: “scheduled”, “running”, “finished”, “error”, and an optional name.
• At startup time (index.ts), read from the jobs collection to reschedule the jobs that are in an error state
• Gracefully shutdown and save the jobs on the DB, these jobs could be in memory until the process shutsdown, for example an array of these objects that gets a new entry on the reminder command. We could catch the process shutdown like this:

process.on('SIGTERM', () => {
  console.info('SIGTERM signal received.');
  //...
});

[eddiejaoude]

Why stalebot, why!? 😂

[BOLT04]

@eddiejaoude we probably need to reconfigure the stale bot. He is ignoring your comment to say there is activity 😅