Add DDNS support (#324)

* feat: add ddns updater framework

Note: no functionality implemented yet

* feat: add webhook ddns provider

* feat: update dashboard template

* fix: check nil and cron task string

* fix: webhook string formated with unexcepted param

* fix: webhook header split error

* feat: cloudflare ddns provider

* refract: move ddns update trigger into ReportSystemInfo

* lang: update other languages text

* fix: clear codes and logics

* fix: move update ddns to goroutine to avoid blocking

* fix: clear unused codes

* fix: update timestamp to prevent cache

resource/l10n/en-US.toml

@@ -614,4 +614,10 @@ other = "Menu"
 other = "Network"
 
 [EnableShowInService]
-other = "Enable Show in Service"
+other = "Enable Show in Service"
+
+[EnableDDNS]
+other = "Enable DDNS"
+
+[DDNSDomain]
+other = "DDNS Domain"

resource/l10n/es-ES.toml

@@ -614,4 +614,10 @@ other = "Menú"
 other = "Red"
 
 [EnableShowInService]
-other = "Mostrar en servicio"
+other = "Mostrar en servicio"
+
+[EnableDDNS]
+other = "Habilitar DDNS"
+
+[DDNSDomain]
+other = "Dominio DDNS"

resource/l10n/zh-CN.toml

@@ -615,3 +615,9 @@ other = "网络"
 
 [EnableShowInService]
 other = "在服务中显示"
+
+[EnableDDNS]
+other = "启用DDNS"
+
+[DDNSDomain]
+other = "DDNS域名"

resource/l10n/zh-TW.toml

@@ -614,4 +614,10 @@ other = "菜單"
 other = "網絡"
 
 [EnableShowInService]
-other = "在服務中顯示"
+other = "在服務中顯示"
+
+[EnableDDNS]
+other = "啟用DDNS"
+
+[DDNSDomain]
+other = "DDNS網域"