Compile navigation row via own method

[rabauss]

Compile navigation row via own method, to get the possibility to overwrite/extend it in own extensions.

[aschempp]

The PR generally looks good to me. I just dislike the whole navigation module concept because
a. it is inside the parent Module class
b. it does not use the knp/menu-bundle
c. its hell of ugly code…

@rabauss why are you using these methods anyway? Are you overriding the navigation module or creating a second one?

[rabauss]

The Code is really a ugly.
But in one project we used or overwritten this module. Finally, we could have written the module ourselves.
I just wanted to give the oportunity to do easier overwrites in the future ;-)

[Toflar]

I‘m fine with that change. Doesn‘t do any harm😊

[leofeyer]

It seems this PR needs some rebasing. 🙈

[leofeyer]

Contao 4.9 is now in the review phase in which we try to review and merge the remaining pull requests that have been created during the development phase. Your pull request does not yet meet the requirements to be reviewed though:

• Make sure that the PR is feature complete.
• Rebase the PR onto the latest master branch.
• Address the requested changes if any.
• Make sure that all CI checks are successful.

Please fix this soon if you can, because the review phase ends on January 15th and we need some time to review the PR before we can merge it.

[leofeyer]

Thank you @rabauss.