feat: Introduce configurable docs link and remove hardcoded chat links

- Added a new GeneralSetting struct to manage configurable docs link
- Removed hardcoded ChatLink and ChatLink2 variables across multiple files
- Updated frontend components to dynamically render docs link from status
- Simplified chat and link-related logic in various components
- Added a warning modal for quota per unit setting in operation settings

setting/operation_setting/general_setting.go

@@ -0,0 +1,21 @@
+package operation_setting
+
+import "one-api/setting/config"
+
+type GeneralSetting struct {
+	DocsLink string `json:"docs_link"`
+}
+
+// 默认配置
+var generalSetting = GeneralSetting{
+	DocsLink: "https://docs.newapi.pro",
+}
+
+func init() {
+	// 注册到全局配置管理器
+	config.GlobalConfig.Register("general_setting", &generalSetting)
+}
+
+func GetGeneralSetting() *GeneralSetting {
+	return &generalSetting
+}