Performance improvements [x] #zap⚡️ improve code formats [x] #build🏗 upgrade dependencies and using typing-extension New Features [x] #feat✨ Agents now can use move.to a random pos on a layer [x] #feat✨ Random choose now can select from an empty list [x] #feat✨ actors' movement by new proxy class Documentation changes [x] #docs📄 updating docs notebooks for beginners [x] #docs📄 refactoring the structure of api docs [x] #docs📄 improve docs format Fixed bugs [x] #bug🐛 use typing_extensions to make abses compatible to python 3.9 [x] #bug🐛 alter nature now behaves correctly [x] #bug🐛 fixing Main Nature total_bounds check ambigious [x] #bug🐛 fixing random.replace arg doesn't work problem Refactoring [x] #refactor♻️ separate _CellAgentsContainer and AgentsContainer [x] #refactor♻️ using default schedule and data collector, but compatible to attrs config [x] #refactor♻️ AgentsContainer private and not singleton anymore [x] refactoring nature, Actor links and its tests [x] store agents by container in PatchCell [x] use get, set methods to control the actor's behaviors