Add postgres client and fix config for CSRF.
- In monthly reports, no downtime stats for the current month (month has just started)
- Add Microsoft Teams integration (#135)
- Add Profile.last_active_date field for more accurate inactive user detection
- Add "Shell Commands" integration (#302)
- PagerDuty integration works with or without PD_VENDOR_KEY (#303)
- On mobile, "My Checks" page, always show the gear (Details) button (#286)
- Make log events fit better on mobile screens