refactor: move constant into core module (#1158)

packages/core/src/global/constants.ts

packages/core/src/global/index.ts

packages/llamaindex/src/PromptHelper.ts

packages/llamaindex/src/cloud/LlamaCloudIndex.ts

packages/llamaindex/src/cloud/LlamaCloudRetriever.ts

packages/llamaindex/src/cloud/index.ts

packages/llamaindex/src/cloud/type.ts

packages/llamaindex/src/cloud/utils.ts

packages/llamaindex/src/constants.ts

packages/llamaindex/src/index.edge.ts

packages/llamaindex/src/storage/StorageContext.ts

packages/llamaindex/src/storage/docStore/KVDocumentStore.ts

...es/llamaindex/src/storage/docStore/SimpleDocumentStore.ts

packages/llamaindex/src/storage/docStore/types.ts

packages/llamaindex/src/storage/index.ts

packages/llamaindex/src/storage/indexStore/KVIndexStore.ts

...ges/llamaindex/src/storage/indexStore/SimpleIndexStore.ts

packages/llamaindex/src/storage/indexStore/types.ts

packages/llamaindex/src/storage/kvStore/SimpleKVStore.ts

...s/llamaindex/src/storage/vectorStore/SimpleVectorStore.ts