Lint the code

alvokanto/src/isolate.rs

alvokanto/src/language.rs

alvokanto/src/main.rs

src/broadcaster.rs

src/import_contest.rs

src/main.rs

src/pages/create_contest.rs

src/pages/get_about.rs

src/pages/get_contest_scoreboard_by_id.rs

src/pages/mod.rs

src/pages/prelude.rs