Purpose of the PR

• close [Feature] Note the old raft config will be deprecated #2660

Main Changes

Place the raft configurations at the bottom of the properties file and mark it as being deprecated.

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?

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

Documentation Status

• Doc - TODO
• Doc - Done
• Doc - No Need

@imbajin PTAL~
This PR is related to "Mark raft-mode configs as legacy (put them on the bottom - properties)" of #2575

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 38.42%. Comparing base (a529c02) to head (84b3caf).
Report is 1 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (a529c02) and HEAD (84b3caf). Click for more details.

HEAD has 5 uploads less than BASE

Flag	BASE (a529c02)	HEAD (84b3caf)
	7	2

@@             Coverage Diff              @@
##             master    #2661      +/-   ##
============================================
- Coverage     47.60%   38.42%   -9.19%     
+ Complexity      820      632     -188     
============================================
  Files           718      718              
  Lines         58469    58469              
  Branches       7496     7496              
============================================
- Hits          27835    22467    -5368     
- Misses        27854    33596    +5742     
+ Partials       2780     2406     -374     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.