In #307 the parent validation messages were removed. We need to bring them back by showing them inline.
Acceptance criteria
Display validation errors inline, both for parent (post/tag) validation and content validation
As part of this, review if the current setup with validation in two components makes sense (also see note below on renaming)
Move the skipped tests in EditContentParentValidation.spec.ts to the appropriate place so the validations are tested
Ensure the tests are still up to date with the current functionality, especially the changes in #449.
Renamed EditContentParentValidation and EditContentValidation when needed (currently these names don't accurately describe what the components do, the latter is more of a content switcher now).
In #307 the parent validation messages were removed. We need to bring them back by showing them inline.
Acceptance criteria
EditContentParentValidation.spec.tsto the appropriate place so the validations are testedEditContentParentValidationandEditContentValidationwhen needed (currently these names don't accurately describe what the components do, the latter is more of a content switcher now).