[feat] persist user ui customization (#3743)

lnbits/core/views/auth_api.py

@@ -467,7 +467,7 @@ async def reset_password(data: ResetUserPassword) -> JSONResponse:
     return _auth_success_response(account.username, user_id, account.email)
 
 
-@auth_router.put("/update")
+@auth_router.patch("")
 async def update(
     data: UpdateUser, account: Account = Depends(check_account_exists)
 ) -> User | None:
@@ -483,6 +483,22 @@ async def update(
     return await get_user_from_account(account)
 
 
+@auth_router.patch("/ui")
+async def update_ui_customization(
+    req: Request, account: Account = Depends(check_account_exists)
+) -> Account:
+    ui_customization = await req.json()
+    account.ui_customization = {**(account.ui_customization or {}), **ui_customization}
+
+    if len(account.ui_customization or {}) > 1000 * 1024:
+        raise HTTPException(
+            HTTPStatus.BAD_REQUEST, "UI customization too large. Drop some fields."
+        )
+
+    await update_user_account(account)
+    return account
+
+
 @auth_router.put("/first_install")
 async def first_install(data: UpdateSuperuserPassword) -> JSONResponse:
     if not settings.first_install: