reverted default value to "list"

application/src/main/java/org/thingsboard/server/config/SwaggerConfiguration.java

@@ -116,7 +116,7 @@ public class SwaggerConfiguration {
     private String appVersion;
     @Value("${swagger.group_name:thingsboard}")
     private String groupName;
-    @Value("${swagger.doc_expansion:none}")
+    @Value("${swagger.doc_expansion:list}")
     private String docExpansion;
 
     @Bean

application/src/main/resources/thingsboard.yml

@@ -1535,7 +1535,7 @@ swagger:
   # The group name (definition) on the API doc UI page.
   group_name: "${SWAGGER_GROUP_NAME:thingsboard}"
   # Control the initial display state of API operations and tags (none, list or full)
-  doc_expansion: "${SWAGGER_DOC_EXPANSION:none}"
+  doc_expansion: "${SWAGGER_DOC_EXPANSION:list}"
 
 # Queue configuration parameters
 queue: