chore: migrate the `hg-style.xml` to `.editorconfig`

[FrostyHec]

Purpose of the PR

• close #2485

Migrate the format defined in hg-style.xml to editorconfig for code style controlling. Editorconfig offers enhanced capabilities for defining coding conventions and can be automatically recognized and imported by IDEA.

Main Changes

Removed hugegraph-style.xml and define the code format control in editorconfig with same functionality.

Verifying these changes

• [ ] Trivial rework / code cleanup without any test coverage. (No Need)
• [ ] Already covered by existing tests, such as (please modify tests here).
• [x] Need tests and can be verified as follows:
  • After pulling the latest editorconfig file, restart IDEA and check if files is formated as expected. We can also open the editorconfig file and use the "Preview Code Style" for verification, as shown below:

Does this PR potentially affect the following parts?

• [ ] Dependencies (add/update license info & regenerate_dependencies)
• [ ] Modify configurations
• [ ] The public API
• [ ] Other affects (typed here)
• [x] Nope

Documentation Status

• [ ] Doc - TODO
• [ ] Doc - Done
• [x] Doc - No Need
  • The file format configuration is enabled by default

[codecov[bot]]

Codecov Report

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

Project coverage is 4.92%. Comparing base (1e97521) to head (34385c7). Report is 1 commits behind head on master.

:exclamation: Current head 34385c7 differs from pull request most recent head f65d056

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HEAD has 5 uploads less than BASE

| Flag | BASE (1e97521) | HEAD (34385c7) | |------|------|------| ||7|2|

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2561 +/- ## ============================================ - Coverage 56.89% 4.92% -51.98% + Complexity 827 479 -348 ============================================ Files 612 590 -22 Lines 49672 47154 -2518 Branches 6681 6233 -448 ============================================ - Hits 28261 2321 -25940 - Misses 18603 44646 +26043 + Partials 2808 187 -2621 ```

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[FrostyHec]

Looks fine~ Thanks for your contribution

PS: Do u test it in the IDEA env?

Thanks~, I have test some cases in IDEA and use the checkstyle in project for verification.