chore: refine the hg-style.xml specification

[returnToInnocence]

Purpose of the PR

• fix the #2435 's subtask of refine the hg-style.xml specification.

Main Changes

• Change the maximum wrap text length for XML and Java to 120 —— hard wrap at should be set to 120.
• Add a blank line between method definitions, inner class definitions, and static code blocks —— after the anonymous class header and before the method body.
• For Properties files, add the option "KEEP_BLANK_LINES."
• Adjust the overall indentation to 4, following the indentation conventions of the save action.

Verifying these changes

• [ ] Trivial rework / code cleanup without any test coverage. (No Need)
• [ ] Already covered by existing tests, such as (please modify tests here).
• [ ] Need tests and can be verified as follows:
  • xxx

Does this PR potentially affect the following parts?

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

Documentation Status

• [ ] Doc - TODO
• [ ] Doc - Done
• [x] Doc - No Need

[codecov[bot]]

Codecov Report

Attention: 83 lines in your changes are missing coverage. Please review.

Comparison is base (5cb9aad) 66.25% compared to head (786213f) 66.24%.

Files	Patch %	Lines
...n/java/org/apache/hugegraph/api/graph/EdgeAPI.java	54.54%	7 Missing and 8 partials :warning:
...java/org/apache/hugegraph/api/graph/VertexAPI.java	7.14%	12 Missing and 1 partial :warning:
.../org/apache/hugegraph/opencypher/CypherPlugin.java	0.00%	6 Missing :warning:
...egraph/backend/store/cassandra/CassandraShard.java	37.50%	5 Missing :warning:
...egraph/backend/store/cassandra/CassandraStore.java	50.00%	4 Missing and 1 partial :warning:
.../java/org/apache/hugegraph/api/graph/BatchAPI.java	33.33%	4 Missing :warning:
.../apache/hugegraph/api/filter/LoadDetectFilter.java	25.00%	3 Missing :warning:
...ain/java/org/apache/hugegraph/api/job/TaskAPI.java	0.00%	3 Missing :warning:
...egraph/backend/store/cassandra/CassandraTable.java	62.50%	1 Missing and 2 partials :warning:
...raph/backend/store/rocksdb/RocksDBStdSessions.java	81.25%	3 Missing :warning:
... and 16 more

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2454 +/- ## ============================================ - Coverage 66.25% 66.24% -0.01% - Complexity 827 828 +1 ============================================ Files 511 511 Lines 42586 42590 +4 Branches 5935 5939 +4 ============================================ + Hits 28214 28215 +1 - Misses 11563 11569 +6 + Partials 2809 2806 -3 ```

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