feat: Private label email policy (#813)

* Label Policy added

* save

* chore: update docs action

* Save

* Save

* Get colors from DB

* Variables inserted

* Get images from global directory.

* Add tests

* Add tests

* Corrections from mergerequest

* Corrections from mergerequest

* Test corrected.

* Added colors to all notifications.

* Added colors to
Corrected text and formatting.all notifications.

* Spelling error corrected.

* fix: tests

* Merge Branch corrected.

* Step6 added

* Corrections from mergerequest

* fix: generate management

* Formatted texts.

* fix: migrations

Co-authored-by: Florian Forster <florian@caos.ch>
Co-authored-by: adlerhurst <silvan.reusser@gmail.com>
Co-authored-by: Fabiennne <fabienne.gerschwiler@gmail.com>

cmd/zitadel/setup.yaml

@@ -29,7 +29,7 @@ SetUp:
     DefaultLoginPolicy:
       AllowUsernamePassword: true
       AllowRegister: true
-      AllowExternalIdp: true
+      AllowExternalIdp: true  
     Orgs:
       - Name: 'Global'
         Domain: 'global.caos.ch'
@@ -90,4 +90,8 @@ SetUp:
       ShowLockOutFailures: false
   Step5:
     DefaultOrgIAMPolicy:
-      UserLoginMustBeDomain: true
+      UserLoginMustBeDomain: true
+  Step6:
+    DefaultLabelPolicy:
+      PrimaryColor: '#222324'
+      SecondaryColor: '#ffffff'