maui [Windows] Fix Picker alignment issues

Description of Change

Fix Windows Picker alignment issues.

fix-picker-layout

To validate the changes can use the added Picker sample to the .NET MAUI Gallery o the added device tests.

Issues Fixed

Fixes #6391

Feb 23 '23 13:02 jsuarezruiz

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Feb 24 '23 08:02 github-actions[bot]

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Mar 01 '23 12:03 github-actions[bot]

The same issue seems to apply to DatePicker and TimePicker

Apr 21 '23 08:04 Inrego

Setting HorizontalOptions on a Picker doesn't make it FillandExpand - it just stays the normal size it is - the Issue #6391 has been marked as Closed due to this commit - so there is no MAUI issue to follow for updates. Am I missing something?

EDIT - I just noticed the 8.0.0 pre-release tag in it - which is part of .NET 8 which isn;t released until Nov and is too unstable too upgrade to just now - seems a bit unfair to Close down issues if they are not available on a stable version of MAUI :(

Jul 14 '23 15:07 HelenMamalaki