Link user id to song queue (#159)

* Added initial code for endpoint to link user id with song queue #156

* Updated songQueue to have a user_id field #156

* Added function to link user_id with songQueue record #156

* Added useful constant #156

* Finished adding code #156

Need to make the endpoint available and then write a test. Might have to modify existing tests

* Made link user id endpoint available #156

* Added TODOs for later

* Changing location of test code

* Code formatting

* Added test #156

* Formatted code

* Added user_id to SongQueue and added more related code

* Code formatting

* Fixing possible nil user_id field in SongQueue when calling a function

* Fixed another issue

* Made changes to function to also return user_id

* Making use of user_id in test requests

* Code formatting

* Updated workflow

* Forgot to include port

* Docker changes for port change

* Reverting port changes

* Cleaning up Dockerfile

* Version bump

Cargo.lock

@@ -752,7 +752,7 @@ dependencies = [
 
 [[package]]
 name = "icarus"
-version = "0.1.92"
+version = "0.1.93"
 dependencies = [
  "axum",
  "common-multipart-rfc7578",