Add component 'Template' (#3562)

### What problem does this PR solve?

#3560

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

api/apps/kb_app.py

@@ -167,9 +167,7 @@ def rm():
         if not KnowledgebaseService.delete_by_id(req["kb_id"]):
             return get_data_error_result(
                 message="Database error (Knowledgebase removal)!")
-        tenants = UserTenantService.query(user_id=current_user.id)
-        for tenant in tenants:
-            settings.docStoreConn.deleteIdx(search.index_name(tenant.tenant_id), req["kb_id"])
+        settings.docStoreConn.delete({"kb_id": req["kb_id"]}, search.index_name(kbs[0].tenant_id), req["kb_id"])
         return get_json_result(data=True)
     except Exception as e:
         return server_error_response(e)

api/apps/user_app.py

@@ -517,8 +517,8 @@ def user_register(user_id, user):
                 "llm_name": llm.llm_name,
                 "model_type": llm.model_type,
                 "api_key": settings.API_KEY,
-                "api_base": settings.LLM_BASE_URL,
-                "max_tokens": llm.max_tokens
+                "api_base": settings.LLM_BASE_URL
+                #"max_tokens": llm.max_tokens if llm.max_tokens else 8192
             }
         )