Integration Tests: Re- enabling KSM XCM Tests & minor doc, clean code fixes

[Dominique-Roth]

Issue

Would be great if i could create a ClickUp ticket, right?
XCM Integration Tests for Kusama test transfers were disabled last week due to an issue, that couldn't be reproduced.
Therefore re- enabling them here & hoping for the best.

Additional Changes

The code comments were partially wrong / misleading, and there was a double before block. Which by current integration test standards we're trying to avoid.

Checklist

- [ ] Updated the rust/typescript docs.
- [ ] Updated the docs/.

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[github-actions]

Nix commands for this PR

NOTE: You can also run our Nix commands in Docker. See the bottom of this comment.

Make sure you have setup the Composable community cache:

(you only need to run it once on your machine)

nix-shell -p cachix --command "cachix use composable-community"

Show all possible apps, shells and packages:

nix flake show "github:ComposableFi/composable/c288eabdfb8c9c74a6230e020e55e20bab8cd26a --allow-import-from-derivation

Run the Composable node alone:

nix run "github:ComposableFi/composable/c288eabdfb8c9c74a6230e020e55e20bab8cd26a#composable-node" -L

Spin up a local devnet:

nix run "github:ComposableFi/composable/c288eabdfb8c9c74a6230e020e55e20bab8cd26a#devnet" -L --option sandbox relaxed --show-trace

Spin up a local XCVM devnet:

nix run "github:ComposableFi/composable/c288eabdfb8c9c74a6230e020e55e20bab8cd26a#devnet-xcvm" -L

View the docs:

nix run ".#docs-server"

Run this without Nix in Docker.

docker run --rm -v /var/run/docker.sock:/var/run/docker.sock -v nix:/nix -it nixos/nix bash -c "nix-env -iA nixpkgs.cachix && cachix use composable-community && nix run github:ComposableFi/Composable/c288eabdfb8c9c74a6230e020e55e20bab8cd26a#devnet-dali -L --extra-experimental-features nix-command --extra-experimental-features flakes"

NOTE: You can swap devnet-dali in the command above with any Nix package

For more info on how to use Nix, check out our Nix docs

Note that the initial build may take about one hour if it has not been cached by our CI yet. Once it is cached, builds should take about one minute. We currently do not provide build caches for ARM machines such as M1 Macs, but building on ARM is supported.

[LyonSsS]

Ready to be merged