refactor(main): simplify Option::map_or to Option::is_some_and

[insign]

This commit refactors a map_or(false, ...) call to the idiomatic is_some_and(...) method on Option in src/main.rs. This was caught and automatically fixed by cargo clippy. Formatting via cargo fmt is also applied. Tested locally, and make precommit completes successfully.

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PR created automatically by Jules for task 7590964043042282968 started by @insign

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