Apply workaround to force screen refresh on YaST QT window

[rakoenig]

• Related ticket: https://progress.opensuse.org/issues/117949

• All workarounds for screen refresh problems that used alt-f10 are now replaced with the shift-f3 workaround.

• The workaround code is outsourced into a library module and called with the needle(s) that we are looking for. The workaround is only applied when necessary (needle would not match) and then accompanied by a soft failure. So soft failures are only recorded when the screen refresh problem occurs.

• Version matiching is now is_sle(''>=15-SP4') because problem seems to occur on SLE 15-SP5 too.

• Verification run: https://openqa.suse.de/tests/9954571 (remaining errors are related to firewall problems)

[github-actions[bot]]

Great PR! Please pay attention to the following items before merging:

Files matching lib/**.pm:

• [ ] Consider adding or extending unit tests in t/

This is an automatically generated QA checklist based on modified files

[DimStar77]

This seems to have resulted in https://openqa.opensuse.org/tests/2919731#step/yast2_security/28

Looking at the investigation jobs on that test, we see:

• New snapshot, New test => fail
• New snapshot, Old testtest => success (unlikely to be a product issue)
• Old snapshot, New test => fail
• Old snapshot, Old test => successful

(nevertheless, I also raised a product bug, as there seems to be yast crash which is not expected - but that seems to exist in 15.4 already too)