refactor: various improvement, but there is still a problem to generate

aep-schedule-website/Cargo.lock

aep-schedule-website/Cargo.toml

aep-schedule-website/src/backend/state.rs

...bsite/src/frontend/components/options/courses_selector.rs

aep-schedule-website/src/frontend/components/options/form.rs

...-website/src/frontend/components/options/optimizations.rs

...chedule-website/src/frontend/components/options/search.rs

aep-schedule-website/src/frontend/components/options/todo.rs

aep-schedule-website/src/frontend/pages/generator.rs

aep-schedule-website/src/frontend/state/mod.rs