Langflow

What's Changed
* Update Dockerfiles, main.py, constants.py, and package versions by ogabrielluiz in https://github.com/langflow-ai/langflow/pull/1691
* Check Store API key by ogabrielluiz in https://github.com/langflow-ai/langflow/pull/1693
* Update OpenAIModel.py: new model by dodeeric in https://github.com/langflow-ai/langflow/pull/1689

New Contributors
* dodeeric made their first contribution in https://github.com/langflow-ai/langflow/pull/1689

**Full Changelog**: https://github.com/langflow-ai/langflow/compare/v1.0.0a19...v1.0.0a20

**Full Changelog**: https://github.com/langflow-ai/langflow/compare/v1.0.0a18...v1.0.0a19

What's Changed
* Update database file path handling and server shutdown message by ogabrielluiz in https://github.com/langflow-ai/langflow/pull/1686


**Full Changelog**: https://github.com/langflow-ai/langflow/compare/v1.0.0a17...v1.0.0a18

What's Changed
* Fix nullable attribute for created_at and updated_at fields in Variable model by ogabrielluiz in https://github.com/langflow-ai/langflow/pull/1669
* Update setup_mode to "Sync" in AstraDBVectorStoreComponent by ogabrielluiz in https://github.com/langflow-ai/langflow/pull/1670
* Fix various issues and refactor code by ogabrielluiz in https://github.com/langflow-ai/langflow/pull/1671
* Update datetime handling in ApiKey and Variable models by ogabrielluiz in https://github.com/langflow-ai/langflow/pull/1673
* Update package versions, workflows, LLMChain and Graph sorting by ogabrielluiz in https://github.com/langflow-ai/langflow/pull/1674
* Update langflow base prompts API utils by ogabrielluiz in https://github.com/langflow-ai/langflow/pull/1682


**Full Changelog**: https://github.com/langflow-ai/langflow/compare/v1.0.0a15...v1.0.0a17

What's Changed
* Update Playwright test and ChatMessage component by anovazzi1 in https://github.com/langflow-ai/langflow/pull/1668
* Fixed dark mode not activating immediatly at refresh by lucaseduoli in https://github.com/langflow-ai/langflow/pull/1666


**Full Changelog**: https://github.com/langflow-ai/langflow/compare/v1.0.0a14...v1.0.0a15

**Full Changelog**: https://github.com/langflow-ai/langflow/compare/v1.0.0a13...v1.0.0a14