add llm providers and required node dependencies

[msaidf]

after installing node packages at extension, run dev throw errors of missing packages, first vite then @rrweb/types. After adding these two packages, run dev works. this become the first commit
the second commit add various llm providers, including google gemini, deepseek, etc

[sauravpanda]

@msaidf can you try with new updated version and see if you still face this issues. if yes, update the PR and happy to merge.