Merge nutrition resolving into nutrition feature branch

[Whatsuup]

Backend

Make sure, you have done de following before merging this pull request:

• Your code is documented using doc comments.
• You added appropriate logging in your code.
• You added unit tests to all your implemented functions.
• You ran cargo format and cargo clippy to format your code and check for improvements.

[Whatsuup]

Already done by @uglrl.
I opened this PR without checking the current status.
I also couldn't estimate how much work it would be. It was only 4 lines of code.
Nevertheless, thank you @uglrl!

To do at least something, I ran the migration tests and checked them randomly. I didn't notice anything negative. Well done.

[worldofjoni]

@Whatsuup are the database insertion methods also called (at the correct place)? I am not aware that that is already done.

[Whatsuup]

Added env and nutrition update feature

[worldofjoni]

Good!
you need to run sqlx prepare so that the ci can run successfully