Make `bad_request!` API helper more generic

What does this MR do?

Many 400 Bad request API responses say things like 400 (Bad request) "File is too large" not given which doesn't make sense. This MR fixes the wording.

Resolves #293553 (closed)

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.