修复一些自定义房间问题，添加房间描述

parts/language/lang_en.lua

@@ -258,6 +258,7 @@ return{
 		net_newRoom={
 			title="Custom room config",
 			roomName="Room name(default to username's room)",
+			roomDescription="Room description",
 
 			life="Lives",
 			pushSpeed="Push Speed",

parts/language/lang_fr.lua

@@ -229,6 +229,7 @@ return{
 		net_newRoom={
 			-- title="Custom room config",
 			-- roomName="Room name(default to username's room)",
+			-- roomDescription="Room description",
 
 			life="Vie",
 			-- pushSpeed="Push Speed",

parts/language/lang_pt.lua

@@ -257,6 +257,7 @@ return{
 		net_newRoom={
 			-- title="Custom room config",
 			-- roomName="Room name(default to username's room)",
+			-- roomDescription="Room description",
 
 			life="Vidas",
 			pushSpeed="Garbage Speed",

parts/language/lang_sp.lua

@@ -233,6 +233,7 @@ return{
 		net_newRoom={
 			-- title="Custom room config",
 			-- roomName="Room name(default to username's room)",
+			-- roomDescription="Room description",
 
 			life="Vida",
 			-- pushSpeed="Garbage Speed",

parts/language/lang_zh.lua

@@ -258,6 +258,7 @@ return{
 		net_newRoom={
 			title="自定义房间参数",
 			roomName="房间名(留空默认 用户名's room)",
+			roomDescription="房间描述",
 
 			life="命数",
 			pushSpeed="上涨速度",