feat(ajax): implement url params inside ajax body

[OmarioHassan]

implement url query params to make it easy for user to pass it dynamically as an object and not to make it by himself and joining it with the url

[OmarioHassan]

@benlesh I think about this change it's a good change because i use Ajax alwayes with qParams more than HttpClient in Angular.
Did you see that it missed something ?

[benlesh]

We've decided to hold off on adding this feature for now. We'll wait to see if it's requested in issues as time goes on.

[OmarioHassan]

No problem
thanks for reply and your good efforts

[benlesh]

I'm still not totally sure we're going to add this feature, but I've added a new PR at #6174, and I'm closing this one in favor of that one. They're both similar but there's a few things that are different about the updated PR.

One thing is that this tries to use new URL, which breaks if the user passes a relative url like /this. The other difference is that the new PR is more permissive with what it allows the user to pass as param, including URLSearchParams, a dictionary, an array of tuples, or a query string directly.

Thank you so much again for your hard work. If we land the new feature hopefully you find it useful.