fix: beautify js code in mapentity.detail.js

[codecov[bot]]

Codecov Report

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

Project coverage is 90.00%. Comparing base (15517c2) to head (53b86fd).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #291 +/- ## ======================================= Coverage 90.00% 90.00% ======================================= Files 32 32 Lines 2402 2402 ======================================= Hits 2162 2162 Misses 240 240 ```

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