fix: Solve the problem of ineffective tooltip sorting

[OlderBabyML]

SUMMARY

I failed to sort when I enabled tooltip sorting I checked the code related to tooltip, and found that after finishing the tooltip sorting, the forecastValue will be recombined into an object of Record<string, ForecastValue>type, and the order of this object is uncertain, which is hashed by key, so the sorting is invalid I tried to replace the Record type with an ordered array, and then the sorting succeeded

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

Create a new chart, add multiple dimensions to the chart, aggregate by multiple dimensions, and then open Tooltip sorting in the chart advanced settings

ADDITIONAL INFORMATION

• [ ] Has associated issue:
• [ ] Required feature flags:
• [x] 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

[rusackas]

@OlderBabyML would you be willing to give this a rebase to make it mergeable, and see if it passes CI? Then we can hopefully give this a test and review!