sources/oauth: add Sign in with Apple (#1635)

* sources/oauth: add apple sign in support

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* website/docs: apple sign in docs

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* website/docs: fix missing apple in sidebar

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* sources/oauth: add fallback values for name and slug

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

locale/en/LC_MESSAGES/django.po

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-10-11 14:12+0000\n"
+"POT-Creation-Date: 2021-10-18 10:40+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -308,6 +308,10 @@ msgstr ""
 msgid "Notification Webhook Mappings"
 msgstr ""
 
+#: authentik/events/monitored_tasks.py:122
+msgid "Task has not been run yet."
+msgstr ""
+
 #: authentik/flows/api/flows.py:350
 #, python-format
 msgid "Flow not applicable to current user/request: %(messages)s"
@@ -385,33 +389,33 @@ msgstr ""
 msgid "Invalid kubeconfig"
 msgstr ""
 
-#: authentik/outposts/models.py:164
+#: authentik/outposts/models.py:167
 msgid "Outpost Service-Connection"
 msgstr ""
 
-#: authentik/outposts/models.py:165
+#: authentik/outposts/models.py:168
 msgid "Outpost Service-Connections"
 msgstr ""
 
-#: authentik/outposts/models.py:201
+#: authentik/outposts/models.py:204
 msgid ""
 "Certificate/Key used for authentication. Can be left empty for no "
 "authentication."
 msgstr ""
 
-#: authentik/outposts/models.py:243
+#: authentik/outposts/models.py:246
 msgid "Docker Service-Connection"
 msgstr ""
 
-#: authentik/outposts/models.py:244
+#: authentik/outposts/models.py:247
 msgid "Docker Service-Connections"
 msgstr ""
 
-#: authentik/outposts/models.py:290
+#: authentik/outposts/models.py:293
 msgid "Kubernetes Service-Connection"
 msgstr ""
 
-#: authentik/outposts/models.py:291
+#: authentik/outposts/models.py:294
 msgid "Kubernetes Service-Connections"
 msgstr ""
 
@@ -988,108 +992,116 @@ msgstr ""
 msgid "Password does not match Active Directory Complexity."
 msgstr ""
 
-#: authentik/sources/oauth/models.py:25
+#: authentik/sources/oauth/models.py:24
 msgid "Request Token URL"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:27
+#: authentik/sources/oauth/models.py:26
 msgid ""
 "URL used to request the initial token. This URL is only required for OAuth 1."
 msgstr ""
 
-#: authentik/sources/oauth/models.py:33
+#: authentik/sources/oauth/models.py:32
 msgid "Authorization URL"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:34
+#: authentik/sources/oauth/models.py:33
 msgid "URL the user is redirect to to conest the flow."
 msgstr ""
 
-#: authentik/sources/oauth/models.py:39
+#: authentik/sources/oauth/models.py:38
 msgid "Access Token URL"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:40
+#: authentik/sources/oauth/models.py:39
 msgid "URL used by authentik to retrieve tokens."
 msgstr ""
 
-#: authentik/sources/oauth/models.py:45
+#: authentik/sources/oauth/models.py:44
 msgid "Profile URL"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:46
+#: authentik/sources/oauth/models.py:45
 msgid "URL used by authentik to get user information."
 msgstr ""
 
-#: authentik/sources/oauth/models.py:102
+#: authentik/sources/oauth/models.py:101
 msgid "OAuth Source"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:103
+#: authentik/sources/oauth/models.py:102
 msgid "OAuth Sources"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:112
+#: authentik/sources/oauth/models.py:111
 msgid "GitHub OAuth Source"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:113
+#: authentik/sources/oauth/models.py:112
 msgid "GitHub OAuth Sources"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:122
+#: authentik/sources/oauth/models.py:121
 msgid "Twitter OAuth Source"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:123
+#: authentik/sources/oauth/models.py:122
 msgid "Twitter OAuth Sources"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:132
+#: authentik/sources/oauth/models.py:131
 msgid "Facebook OAuth Source"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:133
+#: authentik/sources/oauth/models.py:132
 msgid "Facebook OAuth Sources"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:142
+#: authentik/sources/oauth/models.py:141
 msgid "Discord OAuth Source"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:143
+#: authentik/sources/oauth/models.py:142
 msgid "Discord OAuth Sources"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:152
+#: authentik/sources/oauth/models.py:151
 msgid "Google OAuth Source"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:153
+#: authentik/sources/oauth/models.py:152
 msgid "Google OAuth Sources"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:162
+#: authentik/sources/oauth/models.py:161
 msgid "Azure AD OAuth Source"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:163
+#: authentik/sources/oauth/models.py:162
 msgid "Azure AD OAuth Sources"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:172
+#: authentik/sources/oauth/models.py:171
 msgid "OpenID OAuth Source"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:173
+#: authentik/sources/oauth/models.py:172
 msgid "OpenID OAuth Sources"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:188
+#: authentik/sources/oauth/models.py:181
+msgid "Apple OAuth Source"
+msgstr ""
+
+#: authentik/sources/oauth/models.py:182
+msgid "Apple OAuth Sources"
+msgstr ""
+
+#: authentik/sources/oauth/models.py:197
 msgid "User OAuth Source Connection"
 msgstr ""
 
-#: authentik/sources/oauth/models.py:189
+#: authentik/sources/oauth/models.py:198
 msgid "User OAuth Source Connections"
 msgstr ""
 
@@ -1214,19 +1226,19 @@ msgstr ""
 msgid "Duo Devices"
 msgstr ""
 
-#: authentik/stages/authenticator_sms/models.py:97
+#: authentik/stages/authenticator_sms/models.py:158
 msgid "SMS Authenticator Setup Stage"
 msgstr ""
 
-#: authentik/stages/authenticator_sms/models.py:98
+#: authentik/stages/authenticator_sms/models.py:159
 msgid "SMS Authenticator Setup Stages"
 msgstr ""
 
-#: authentik/stages/authenticator_sms/models.py:116
+#: authentik/stages/authenticator_sms/models.py:176
 msgid "SMS Device"
 msgstr ""
 
-#: authentik/stages/authenticator_sms/models.py:117
+#: authentik/stages/authenticator_sms/models.py:177
 msgid "SMS Devices"
 msgstr ""
 
@@ -1291,19 +1303,19 @@ msgstr ""
 msgid "Authenticator Validation Stages"
 msgstr ""
 
-#: authentik/stages/authenticator_webauthn/models.py:49
+#: authentik/stages/authenticator_webauthn/models.py:51
 msgid "WebAuthn Authenticator Setup Stage"
 msgstr ""
 
-#: authentik/stages/authenticator_webauthn/models.py:50
+#: authentik/stages/authenticator_webauthn/models.py:52
 msgid "WebAuthn Authenticator Setup Stages"
 msgstr ""
 
-#: authentik/stages/authenticator_webauthn/models.py:78
+#: authentik/stages/authenticator_webauthn/models.py:85
 msgid "WebAuthn Device"
 msgstr ""
 
-#: authentik/stages/authenticator_webauthn/models.py:79
+#: authentik/stages/authenticator_webauthn/models.py:86
 msgid "WebAuthn Devices"
 msgstr ""