- Create framework for chat-client, including logo, explanatory text, color settings, ...

- remove allowed_langages from tenant
- Correct bugs in Tenant, TenantMake, SpecialistMagicLink
- Change chat client customisation elements

config/customisations/globals/CHAT_CLIENT_CUSTOMISATION/1.0.0.yaml

@@ -26,9 +26,34 @@ configuration:
     description: "Sidebar Color"
     type: "color"
     required: false
-  "sidebar_text":
-    name: "Sidebar Text"
-    description: "Text to be shown in the sidebar"
+  "sidebar_background":
+    name: "Sidebar Background"
+    description: "Sidebar Background Color"
+    type: "color"
+    required: false
+  "markdown_background_color":
+    name: "Markdown Background"
+    description: "Markdown Background Color"
+    type: "color"
+    required: false
+  "markdown_text_color":
+    name: "Markdown Text"
+    description: "Markdown Text Color"
+    type: "color"
+    required: false
+  "gradient_start_color":
+    name: "Gradient Start Color"
+    description: "Start Color for the gradient in the Chat Area"
+    type: "color"
+    required: false
+  "gradient_end_color":
+    name: "Gradient End Color"
+    description: "End Color for the gradient in the Chat Area"
+    type: "color"
+    required: false
+  "sidebar_markdown":
+    name: "Sidebar Markdown"
+    description: "Sidebar Markdown-formatted Text"
     type: "text"
     required: false
   "welcome_message":