End-to-end unit test (#90)

* First implementation of create_torrent_file

* Test harness for e2e preparing

* Saving

* Continuing test harness

* Continuing test harness

* Continuing test harness

* All servers are running

* Full e2e harness done

* Test e2e harness working fine

* Remove lints

* injecting faults

* The e2e test runs continuously

* e2e test

* Add a test for create_torrent

* Nothing

* Nothing, just tweaking the numberes

* Update tokio, remove custom tempfile shim

desktop/src-tauri/Cargo.lock

@@ -3958,9 +3958,9 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.34.0"
+version = "1.36.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0c014766411e834f7af5b8f4cf46257aab4036ca95e9d2c144a10f59ad6f5b9"
+checksum = "61285f6515fa018fb2d1e46eb21223fff441ee8db5d0f1435e8ab4f5cdb80931"
 dependencies = [
  "backtrace",
  "bytes",