Patch: OIDC polish (#636)

- Added two env vars for OIDC login: 
- HIDE_LOCAL_AUTH - Remove the "password" option on login page when OIDC
enabled
  - OIDC_AUTO_REDIRECT - Immediately launch OIDC provider page
- Improved UX for initial OIDC setup, including creating a local admin
user
- Added callback URL label to OIDC setup page
- Fix Qbittorrent save path bug

docker-compose.dev.yml

@@ -12,6 +12,8 @@ services:
       - SYS_PTRACE
     environment:
       DEBUG: true
+      # HIDE_LOCAL_AUTH: true
+      OIDC_AUTO_REDIRECT: true
     volumes:
       - ./.local/config:/config
       - ./.local/books:/books