Correcting several instances of 'overridden' being misspelled

What does this MR do?

“Overridden” is tough to spell - @m_gill helped me out in a recent MR and when I did a search and replace, I found lots of other people did the same. This hopefully corrects some of the spellings without any side effects.

Screenshots

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.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done