refactor: move crdt files into separate directory

packages/loot-core/bin/get-db-schema

packages/loot-core/bin/profile-sql.js

packages/loot-core/src/server/api.js

packages/loot-core/src/server/aql/schema/executors.test.js

packages/loot-core/src/server/crdt/index.js

packages/loot-core/src/server/crdt/merkle.js

packages/loot-core/src/server/crdt/merkle.test.js

packages/loot-core/src/server/crdt/timestamp.js

packages/loot-core/src/server/crdt/timestamp.test.js

packages/loot-core/src/server/db/index.js

packages/loot-core/src/server/main.js

packages/loot-core/src/server/main.test.js

packages/loot-core/src/server/prefs.js

packages/loot-core/src/server/sync/index.js

packages/loot-core/src/server/sync/migrate.js

packages/loot-core/src/server/sync/repair.js

packages/loot-core/src/server/sync/sync.property.test.js

packages/loot-core/src/server/sync/sync.test.js

packages/loot-core/src/server/tests/mockSyncServer.js

packages/loot-core/src/server/undo.js