增加策略号值、唯一性，http请求响应替换内容的国际化

修改bgp、响应策略、图片url遮盖层显示位置
修改voip界面账号的国际化显示内容

src/main/resources/messages/message_en.properties

@@ -564,6 +564,7 @@ request_service_failed=request server failed
 request_error=request error
 av_voip_ip_title=voip Ip
 av_voip_account_title=voip Account
+account=Account
 ip_pattern=ip Pattern
 port_pattern=port Pattern
 port_mask=port Mask
@@ -676,6 +677,7 @@ domain_forward=domain forward
 http_redirect=http redirect
 http_req_replace=http request replace
 http_res_replace=http response replace
+replace_content=replace content
 #=============about proxy=========
 #===========policy_group_manage start  =============
 all_types=all types
@@ -702,4 +704,6 @@ min_ttl=min ttl
 max_ttl=max ttl
 ttl_unit=unit/s 
 res_group_num=response number
+policy_number_value_valid=\u7B56\u7565\u53F7\u503C\u53EA\u80FD\u4E3A0\uFF0C\u6216\u5927\u4E8E100
+policy_number_value_unique=\u7B56\u7565\u53F7\u5DF2\u5B58\u5728
 #=============about Maintenance=========