Link to Jira Ticket

https://formio.atlassian.net/browse/FIO-8366

Description

What changed?

• API key validation errors now are able to be translated using the apiKey property. This is possible now because the apiKey property was added to en.js translation file and the highlightInvalidComponents function which is responsible for setting the apiKey validation error now uses this.t("apiKey") instead of hard coding the error. The apiKey is also passed in the context of what apiKey is causing the error using comp.key.
• The check to remove "api key is not unique" error message from the form is unnecessary as the check for invalid api keys is made when the form build is saved and the form builder will redraw the components upon saving which removes the apiKey error

Dependencies

How has this PR been tested?

manually

Checklist:

• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (if applicable)
• My changes generate no new warnings
• My changes include tests that prove my fix is effective (or that my feature works as intended)
• New and existing unit/integration tests pass locally with my changes
• Any dependent changes have corresponding PRs that are listed above