fefactor: rename userdata to extra data

[giangndm]

Pull Request

Description

This PR rename from peer's userdata to peer's extra_data for avoiding mis-understanding

Related Issue

If this pull request is related to any issue, please mention it here.

Checklist

• I have tested the changes locally.
• I have reviewed the code changes.
• I have updated the documentation, if necessary.
• I have added appropriate tests, if applicable.

Screenshots

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Additional Notes

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[codecov]

Codecov Report

Attention: Patch coverage is 37.14286% with 44 lines in your changes missing coverage. Please review.

Project coverage is 42.81%. Comparing base (a484a4e) to head (652effa).

Files	Patch %	Lines
bin/src/server/gateway/local_rpc_handler.rs	0.00%	8 Missing ⚠️
packages/media_runner/src/worker.rs	0.00%	6 Missing ⚠️
packages/transport_webrtc/src/transport.rs	0.00%	5 Missing ⚠️
bin/src/http/api_media.rs	0.00%	4 Missing ⚠️
bin/src/http/api_token.rs	0.00%	3 Missing ⚠️
packages/protocol/src/transport/webrtc.rs	0.00%	3 Missing ⚠️
packages/transport_webrtc/src/transport/whep.rs	0.00%	3 Missing ⚠️
packages/transport_webrtc/src/transport/whip.rs	0.00%	3 Missing ⚠️
bin/src/server/media/rpc_handler.rs	0.00%	2 Missing ⚠️
packages/protocol/src/transport/whep.rs	0.00%	2 Missing ⚠️
... and 3 more

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #386   +/-   ##
=======================================
  Coverage   42.81%   42.81%           
=======================================
  Files         134      134           
  Lines       14534    14534           
=======================================
  Hits         6223     6223           
  Misses       8311     8311           

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