优化

app/src/main/java/io/legado/app/utils/CookieManagerExtensions.kt

@@ -11,8 +11,8 @@ fun CookieManager.removeCookie(domain: String) {
         "https://$domain"
     )
     urls.forEach { url ->
-        val cookieGlob = cm.getCookie(url)
-        cookieGlob.splitNotBlank(";").forEach {
+        val cookieGlob: String? = cm.getCookie(url)
+        cookieGlob?.splitNotBlank(";")?.forEach {
             val cookieName = it.substringBefore("=")
             cm.setCookie(url, "$cookieName=; Expires=Wed, 31 Dec 2000 23:59:59 GMT")
         }