[11.x] Enhance URI query string manipulation

[hafezdivandari]

Related to #53731

A query string parameter key may contain a dot, and manipulating the query string with methods that support "dot" notation makes the current implementation buggy. This PR adds two tests that demonstrate the issue.

This PR:

• Moves the logic for query string manipulation from the Uri class to the UriQueryString class.
• Fixes the issue with manipulating query parameters that have dots in their keys.

There’s room for improvement in this PR. Please mark it as a draft if you think the general approach is heading in the right direction. Any feedback is appreciated. Thanks!

[taylorotwell]

I don't want to move the manipulation stuff into the query parameters class. I want it to stay in the URI class.

The dot notation stuff was intentional, though I'm not 100% confident it is the right approach. It makes it easy to dig into array based query strings... and it makes it consistent with how $request->input works as well as $request->has, $request->missing, etc. since both share the InteractsWithData trait.