fix: Fix client sending state mechanism that was blocking the executor (#36)

* fix: Fix client sending state mechanism that was blocking the executor

* fix tests

* fix minimal versions

* fix yaml

* fix build ci

* remove cargo check

* move check of initial full list in the test function

* add test for non-empty initial full list

* Fix typo in src/client.rs

* more comments

* more comments

* more comments

* halt connection when start sending timeout is reached

* do not keep alive halted connections

* add more comments

* Update src/client.rs

Co-authored-by: Mikołaj Florkiewicz <mikolaj@florkiewicz.me>

* Update src/client.rs

Co-authored-by: Mikołaj Florkiewicz <mikolaj@florkiewicz.me>

* Update src/client.rs

Co-authored-by: Mikołaj Florkiewicz <mikolaj@florkiewicz.me>

* Update src/client.rs

Co-authored-by: Mikołaj Florkiewicz <mikolaj@florkiewicz.me>

* Update src/client.rs

Co-authored-by: Mikołaj Florkiewicz <mikolaj@florkiewicz.me>

* Update src/client.rs

Co-authored-by: Mikołaj Florkiewicz <mikolaj@florkiewicz.me>

* Update src/client.rs

Co-authored-by: Mikołaj Florkiewicz <mikolaj@florkiewicz.me>

* Update src/client.rs

Co-authored-by: Mikołaj Florkiewicz <mikolaj@florkiewicz.me>

* Update src/client.rs

Co-authored-by: Mikołaj Florkiewicz <mikolaj@florkiewicz.me>

* Update src/client.rs

Co-authored-by: Mikołaj Florkiewicz <mikolaj@florkiewicz.me>

* Update src/client.rs

Co-authored-by: Mikołaj Florkiewicz <mikolaj@florkiewicz.me>

* fmt

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Co-authored-by: Mikołaj Florkiewicz <mikolaj@florkiewicz.me>

Author: oblique