Add functions to delete client information when the connection is terminated

[tetter27]

If the connection to the client is lost, perform the following:

• Delete information registered as pub/sup from track_namespace_manager
• Delete sender information of uni/bi directional stream from send_stream_dispatcher

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 69.51220% with 25 lines in your changes missing coverage. Please review.

Project coverage is 46.67%. Comparing base (1618c3a) to head (cad3bbb). Report is 6 commits behind head on master.

Files with missing lines	Patch %	Lines
moqt-server/src/modules/track_namespace_manager.rs	86.36%	9 Missing :warning:
moqt-server/src/modules/send_stream_dispatcher.rs	0.00%	8 Missing :warning:
moqt-server/src/lib.rs	0.00%	7 Missing :warning:
...-server/src/modules/handlers/unannounce_handler.rs	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #84 +/- ## ========================================== + Coverage 43.67% 46.67% +3.00% ========================================== Files 37 37 Lines 1344 1414 +70 ========================================== + Hits 587 660 +73 + Misses 757 754 -3 ```

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