[Forwardport] Fix for Magnifier in inside mode

[vijay-wagento]

Original Pull Request

#15382

Fixed Issues

1. Magnifier doesn't work with mode set to inner #4977: Magnifier doesn't work with mode set to inner

Manual testing scenarios

You need to change the magnifier's configuration options in the file: app/design/frontend/Magento/luma/etc/view.xml

Set the following values ​​for these lines:

<var name="enabled">true</var>
<var name="mode">inside</var>

[VladimirZaets]

Hi, @vijay-wagento , thank you for collaboration.
This fix works wrong on Magento 2.3 branch.
Magnifier doesn't hide when the cursor was the moved out from the image.
Also, the image isn't resized by container size, as it occurs in 2.2 branch
2.3 branch

2.2 branch

[vijay-wagento]

Hello @VladimirZaets
Let me take a look,
Thanks,

[VladimirZaets]

Hi @vijay-wagento, I am closing this PR now due to inactivity.
Please reopen and update if you wish to continue.
Thank you for collaboration