Add support for Anthropics /model endpoint (finally) (#3376)

.github/workflows/dev-build.yaml

.../src/components/LLMSelection/AnthropicAiOptions/index.jsx

frontend/src/hooks/useGetProvidersModels.js

...ttings/WorkspaceLLMSelection/ChatModelSelection/index.jsx

server/package.json

server/utils/AiProviders/anthropic/index.js

server/utils/helpers/customModels.js

server/utils/helpers/updateENV.js

server/yarn.lock