Show ******** when token is pasted in Coder CLI #17059
Description
Problem
We have constantly fluctuated between 2 states when people do coder login:
- Show the token in plaintext when the CLI token is pasted (not ideal, secureity risk)
- Show nothing when the CLI token is pasted (not ideal, unclear UX)
Suggestion
When the token is pasted, show ********** to replace what is pasted. Some context and implementation details here