Fix another batch of spelling typos

Created by: NathanBaulch

This PR fixes over a thousand spelling typos across the entire codebase, just like I did last year in #10272. However this time I used the excellent typos tool to speed up the process. This could be set up as a GitHub action if desired, with a little work upfront to identify and configure the false positives.

FYI, the top 10 typos this time around are:

1. occured
2. someting
3. additonal
4. overrided
5. errror
6. seperate
7. propery
8. pharse
9. asserion
10. unambigously

PR checklist

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  ./mvnw clean package 
  ./bin/generate-samples.sh
  ./bin/utils/export_docs_generators.sh

  Commit all changed files.
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