Add password to coder_apps that support it

[matifali]

Related to coder/coder#13087 Add a password to all modules that support it natively. This will require,

1. Generating a random password
2. Exposing it as a coder_metadata item.
3. Adding an input password = true|false to control if we need password.
4. Make password required i.e. share = "public" should mandate password = true

• [ ] Jupyter Lab
• [ ] filebrowser
• [ ] code-server
• [ ] vscode-web
• [ ] kasmVNC