fix: display first product image after switching products

[SGrueber]

...on product detail page

PR Type

[x] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no API changes)
[ ] Build-related changes
[ ] CI-related changes
[ ] Documentation content changes
[ ] Application / infrastructure changes
[ ] Other:

What Is the Current Behavior?

When switching between product detail pages in the PWA ( e.g. via the Recently Viewed list), it may happen that instead of the primary product image (the first one), another one of the available product images is displayed. This depends on which product image was displayed on the previous PDP (e.g. if the second image of Product A was displayed, the second product image of Product B will be displayed after opening the PDP of Product B).

Issue Number: Closes #

What Is the New Behavior?

After changing the product on product detail page always the first product image is shown.

Does this PR Introduce a Breaking Change?

##Steps to repeat

1. open the PWA
2. open the PDP of any product (e.g. 859910)
3. open the PDP of another product (e.g. 201807232)
4. select product image 2 via thumbnail click or arrow buttons
5. open the PDP of the product from step 2 via "Recently Viewed" list
   --> product image 2 of this product is displayed instead of 1

[ ] Yes
[x] No

Other Information

AB#88377
AB#88311