fix: hoist github/google SSO defaults to module scope

[lhojun]

Overview

Fixes a "githubDefaults/googleDefaults is not defined" error when saving a GitHub or Google SSO provider.

• Fixed: adding a GitHub or Google SSO provider throwing a ReferenceError on save

Changes Made

buildConfig() in the top-level dialog component reads githubDefaults / googleDefaults, but those were declared locally inside OIDCConfigFields, so they weren't in scope there. Selecting provider type "GitHub" (throws githubDefaults is not defined) or "Google" (throws googleDefaults is not defined) and hitting Save always errored before any request went out.

Moved both constants to module scope so buildConfig() and OIDCConfigFields share them.

Related Issues

None

Screenshots / Demos

None

Checklist

• Code follows project style guidelines
• Supports mobile and desktop UI/app (if applicable)
• I have read Contributing.md
• This is not a translation request.