chore: Move remaining auth methods to plugins (#4900)

* Move Google, Email, and Azure to plugins

* Move OIDC provider, remove old loading code

* Move AuthLogo to plugin

* AuthLogo -> PluginIcon

* Lazy load plugin settings

server/presenters/providerConfig.ts

@@ -1,5 +1,5 @@
 import { signin } from "@shared/utils/routeHelpers";
-import { AuthenticationProviderConfig } from "@server/routes/auth/providers";
+import { AuthenticationProviderConfig } from "@server/models/helpers/AuthenticationHelper";
 
 export default function presentProviderConfig(
   config: AuthenticationProviderConfig