Fix GetCropUrl() extension methods on UrlHelper

[ronaldbarendse]

Prerequisites

• I have added steps to test this contribution in the description below

If there's an existing issue for this PR then this fixes #10402.

Description

With the introduction of the new Media picker (v3 - with local crops), a new GetCropUrl() extension method on UrlHelper was added that causes a The call is ambiguous between the following methods or properties compiler error when used with named parameters.

This PR aligns the extension methods/parameters on UrlHelper with those on IPublishedContent. Some code might still need updating, but the impact would be a lot lower (as the new extension method has less parameters that can cause ambiguity) and the change will be a lot easier:

Url.GetCropUrl(Model.Image.LocalCrops, cropAlias: "Test") // Still ambiguous, but that's currently also the case for the IPublishedContent extension method
Url.GetCropUrl(Model.Image.LocalCrops, "Test") // Uses the crop alias and its dimensions, easy fix!
Url.GetCropUrl(Model.Image.LocalCrops, cropAlias: "Test", useCropDimensions: true) // Not ambiguous anymore, but the same as the previous call, a bit more explicit, but still an easy fix!

[ronaldbarendse]

The changes in this PR show up a bit weird, but if you look at the separate commits, you'll clearly see I've removed the offending GetCropUrl() overload that caused the ambiguous method compiler error (introduced in #9461) and added a new one to allow passing in local crops.

These commits are also part of PR #10529, but that also contains new features.

[ronaldbarendse]

I'll close this PR as #10529 that includes these changes is now merged!