fix(viz-date-control): Just use global DEFAULT_TIME_FORMAT instead of hardcoding 'smart_date'

[Always-prog]

SUMMARY

Some visualizations in the date formatter control specify a default date format 'smart_date'. However, it is recommended to use the DEFAULT_TIME_FORMAT instead of hardcoding a specific format.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• [ ] Has associated issue:
• [ ] Required feature flags:
• [ ] Changes UI
• [ ] Includes DB Migration (follow approval process in SIP-59)
  • [ ] Migration is atomic, supports rollback & is backwards-compatible
  • [ ] Confirm DB migration upgrade and downgrade tested
  • [ ] Runtime estimates and downtime expectations provided
• [ ] Introduces new feature or API
• [ ] Removes existing feature or API