Symfony 7 support continuation

[antiftw]

Continuation of this PR.

• I've just used the composer diff from the other PR. However, I am not sure if that's actually correct, since I doubt this repo still supports versions that way back, but I could be wrong (?)
• Deprecated the Annotations (with attributes ;)).
• Created Attributes to replace them.
• Mostly went fine, however there is some code where you cannot really replace the annotations with attributes. Because I was not sure what to do with these, I just left them there, since they seemed to be effecting the 'used' status of the use statement for that particular attribute.
• Added some property typing.
• Some other minor refactors (deprecation warnings, other warnings from PHPStorm).
• Modified some Models to use constructor property promotion.
• Modified Translate attribute so that you dont have to provide a default domain.

[antiftw]

Thank you for starting working on it!

I allowed the CI to run here so that you could see some errors, but I suppose you should see those errors locally too?

You're welcome, and glad to see such a quick response :)

Thanks, that was one of the reasons why I submitted the PR, since I actually had some trouble getting the test working yesterday evening. But I got them to work now. First going to cook some food and then I'm going to dive right in.

[antiftw]

Nice! And happy to help :)

[bocharsky-bw]

OK, tests pass, so I'm releasing it! Thanks again for this big work 👍