providers/proxy: add initial header token auth (#4421)

* initial implementation

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* check for openid/profile claims

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* include jwks sources in proxy provider

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* add web ui for jwks

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* only show sources with JWKS data configured

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix introspection tests

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* start basic

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* add basic auth

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* add docs, update admonitions

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* add client_id to api, add tab for auth

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* update locale

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

website/integrations/services/nextcloud/index.md

@@ -12,11 +12,11 @@ From https://en.wikipedia.org/wiki/Nextcloud
 Nextcloud is a suite of client-server software for creating and using file hosting services. Nextcloud is free and open-source, which means that anyone is allowed to install and operate it on their own private server devices.
 :::
 
-:::warning
+:::caution
 This setup only works, when Nextcloud is running with HTTPS enabled. See [here](https://docs.nextcloud.com/server/stable/admin_manual/configuration_server/reverse_proxy_configuration.html?highlight=overwriteprotocol#overwrite-parameters) on how to configure this.
 :::
 
-:::warning
+:::info
 In case something goes wrong with the configuration, you can use the URL `http://nextcloud.company/login?direct=1` to log in using the built-in authentication.
 :::