Reduce turbofish usage

src/client_server/config.rs

src/client_server/context.rs

src/client_server/device.rs

src/client_server/directory.rs

src/client_server/keys.rs

src/client_server/membership.rs

src/client_server/message.rs

src/client_server/push.rs

src/client_server/room.rs

src/client_server/search.rs

src/client_server/state.rs

src/client_server/sync.rs

src/client_server/tag.rs

src/database.rs

src/database/globals.rs

src/database/key_backups.rs

src/database/rooms.rs

src/database/rooms/edus.rs

src/database/sending.rs

src/database/uiaa.rs