Fix bug candidates of forms on Bootstrap Grid system

What does this MR do?

Fixes CSS for labels in the forms based on Bootstrap Grid system to avoid breaking the layout on validation errors.

Some screenshots

case	screenshots
before
after

What are the relevant issue numbers?

Closes #57189 (closed)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• [n/a] Documentation created/updated via this MR
• [n/a] Documentation reviewed by technical writer or follow-up review issue created
• [n/a] Tests added for this feature/bug
• Tested in all supported browsers
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• [n/a] Conforms to the database guides
• Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.
• [n/a] Security reports checked/validated by reviewer