Update shinytest files to work with `shinycoreci::fix_all_gha_branches()`

[schloerke]

• Fixed issue for windows having too many arguments when pushing test results
• Merged in failures
  • Mainly DT is storing selected
• Fixed app 188 to use shinycoreci shiny test method

[schloerke]

Merging to have the changes in Master, even if the changes are not all fixed