[API] Use explicit search endpoint instead of autosuggest

[tuxuser]

Autosuggest only returns maximum of 10 entries.
The actual search endpoint returns everything it can find.

Currently search endpoint is defined here:

StoreLib/StoreLib/Models/Endpoint.cs

Lines 37 to 38 in f372a22

	public static readonly Uri DisplayCatalogSearch = new Uri("https://displaycatalog.mp.microsoft.com/v7.0/productFamilies/autosuggest?market=US&languages=en-US&query=");
	public static readonly Uri DisplayCatalogSearchInt = new Uri("https://displaycatalog-int.mp.microsoft.com/v7.0/productFamilies/autosuggest?market=US&languages=en-US&query=");

The search endpoint is:

/// productFamily: "Games" or "Apps" ... maybe comma separated is possible too?
var DisplayCatalogSearch = $"https://displaycatalog.mp.microsoft.com/v7.0/productFamilies/{productFamily}/products?query={searchQuery}&market=US&languages=en-US&fieldsTemplate=details&platformdependencyname=windows.xbox";

Old endpoint could be renamed to DisplayCatalogAutosuggest or something along those lines.

Any suggestions?