feat: add async pipelines

fix: import ChatOpenAI without warnings

fix: import chatopenai properly?

refactor: change model_config to dict

refactor: adjust SlideAnalysis typing

feat: add saving response metadata. rename args to be compatible with chains

style: fix typing, reformat

feat: configure pipelines

feat: add prompts module

refactor: remove unused functions

fix: resolve imports

refactor: change convenience functions

fix: implement resetting prompt

feat: add fresh start option to PresentationAnalysis

feat: add convenience functions for processing slides

feat: remove prompt from SlideAnalysis object in PresentationAnalysis

feat: save vision prompt to presentation

refactor: change datetime format

feat: return chain outputs

fix: set default dpi=72

refactor: change project structure