feat: use-auth-client react hook

[krpeacock]

Description

Introduces a new library: @dfinity/use-auth-client

Simplifies managing authentication using best practices with hooks and effects.

Logout and onIdle also ends session for Actors managed by the auth hook.

Example app live at https://5ibdo-haaaa-aaaab-qajia-cai.icp0.io/

How Has This Been Tested?

New unit test and an example project. More testing would probably be worthwhile

Checklist:

• [X] My changes follow the guidelines in CONTRIBUTING.md.
• [X] The title of this PR complies with Conventional Commits.
• [X] I have edited the CHANGELOG accordingly.
• [X] I have made corresponding changes to the documentation.

[github-actions[bot]]

size-limit report 📦

Path	Size
@dfinity/agent	85.63 KB (0%)
@dfinity/candid	13.58 KB (0%)
@dfinity/principal	4.97 KB (0%)
@dfinity/auth-client	60.3 KB (0%)
@dfinity/assets	80.8 KB (0%)
@dfinity/identity	57.51 KB (0%)
@dfinity/identity-secp256k1	130.6 KB (0%)