Simplifies a bunch of test code by converting it to use our handy testUtils module.
None of the app code is change, just test code. And none of the test cases are modified in any meaningful way - this just simplifies the setup/cleanup significantly.
* fix: adding messages for i18n issues related to placeholders
* fix: adding messages for i18n issues related to import tag wizard stepper titles
* fix: changing name to duplicated id on i18n message
* fix: replacing hardcoded string with constants to solve i18n issue
* fix: typo on title prop
* fix: adding components prop name correctly
* test: adding ut for select video modal
* chore: adding description to placeholder, changing extension to constant file and adding uts for code coverage
* chore: removing outdated comment lines
