Add user dropdown seed-able list (#2308)

* add user dropdown seedable list

* minor cleanup

* fix build issue

* minor type update

* remove log

* quick update to divider logic (squash)

* tiny icon updates

backend/ee/danswer/server/enterprise_settings/models.py

@@ -1,4 +1,13 @@
+from typing import List
+
 from pydantic import BaseModel
+from pydantic import Field
+
+
+class NavigationItem(BaseModel):
+    link: str
+    icon: str
+    title: str
 
 
 class EnterpriseSettings(BaseModel):
@@ -10,6 +19,9 @@ class EnterpriseSettings(BaseModel):
     use_custom_logo: bool = False
     use_custom_logotype: bool = False
 
+    # custom navigation
+    custom_nav_items: List[NavigationItem] = Field(default_factory=list)
+
     # custom Chat components
     two_lines_for_chat_header: bool | None = None
     custom_lower_disclaimer_content: str | None = None