chore: refactor domain parsing to be more general (#3448)

* change the api of domain parsing to just parseDomain and getCookieDomain
* adds getBaseDomain as the method to get the domain after any official subdomains

server/models/Team.ts

@@ -19,7 +19,7 @@ import {
   DataType,
 } from "sequelize-typescript";
 import { v4 as uuidv4 } from "uuid";
-import { stripSubdomain, RESERVED_SUBDOMAINS } from "@shared/utils/domains";
+import { getBaseDomain, RESERVED_SUBDOMAINS } from "@shared/utils/domains";
 import env from "@server/env";
 import Logger from "@server/logging/Logger";
 import { generateAvatarUrl } from "@server/utils/avatars";
@@ -122,6 +122,7 @@ class Team extends ParanoidModel {
   }
 
   get url() {
+    // custom domain
     if (this.domain) {
       return `https://${this.domain}`;
     }
@@ -131,7 +132,7 @@ class Team extends ParanoidModel {
     }
 
     const url = new URL(env.URL);
-    url.host = `${this.subdomain}.${stripSubdomain(url.host)}`;
+    url.host = `${this.subdomain}.${getBaseDomain()}`;
     return url.href.replace(/\/$/, "");
   }