chore(x/fbridge): add the event of `SetBridgeStatus` (backport #1369)

[mergify[bot]]

Description

closes: #XXXX

Motivation and context

How has this been tested?

Screenshots (if appropriate):

Checklist:

• [x] I followed the contributing guidelines and code of conduct.
• [x] I have added a relevant changelog to CHANGELOG.md
• [ ] I have added tests to cover my changes.
• [ ] I have updated the documentation accordingly.
• [ ] I have updated API documentation client/docs/swagger-ui/swagger.yaml

  ---

  This is an automatic backport of pull request #1369 done by Mergify.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 68.87%. Comparing base (abe3a24) to head (abe3a24).

:exclamation: Current head abe3a24 differs from pull request most recent head a19a269. Consider uploading reports for the commit a19a269 to get more accurate results

Additional details and impacted files

[](https://app.codecov.io/gh/Finschia/finschia-sdk/pull/1370?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Finschia) ```diff @@ Coverage Diff @@ ## release/v0.49.x #1370 +/- ## ================================================ Coverage 68.87% 68.87% ================================================ Files 675 675 Lines 69199 69199 ================================================ Hits 47660 47660 Misses 19259 19259 Partials 2280 2280 ```