Fix clippy lints

src/api/core/ciphers.rs

src/api/core/organizations.rs

src/api/core/two_factor/authenticator.rs

src/api/core/two_factor/duo.rs

src/api/core/two_factor/email.rs

src/api/core/two_factor/u2f.rs

src/api/core/two_factor/webauthn.rs

src/api/icons.rs

src/api/identity.rs

src/api/mod.rs

src/api/notifications.rs

src/config.rs

src/db/models/attachment.rs

src/db/models/cipher.rs

src/db/models/collection.rs

src/db/models/device.rs

src/db/models/favorite.rs

src/db/models/folder.rs

src/db/models/organization.rs

src/db/models/send.rs